What is the direction of acceleration of the curved motion under the condition of variable accelerat

Uniform acceleration of curved movements, e.g. flat throw, oblique throw.

Variable acceleration curved motion, such as uniform circular motion.

The acceleration of the uniform acceleration curve motion is constant, and the direction of the initial velocity is not in the same line as the acceleration.

The acceleration of the variable acceleration curve motion is changed, and the direction of the initial velocity is not in the same line as the acceleration.

The trajectory of an object's motion is the motion of a curve, which is called "curvilinear motion". When the resultant force exerted on an object is not in the same line as its velocity, the motion of the object is a curvilinear motion. In curvilinear motion:

When the angle between the force vector and the velocity vector is equal to 90°, the force only changes the direction of the object's velocity, but does not change the magnitude of the velocity: for example, uniform circular motion; When the angle is less than 90°, the force not only changes the direction of the object's velocity, but also increases the magnitude of the velocity. When the angle is greater than 90°, the direction of the object's velocity is also changed, but the magnitude of the velocity is reduced. When the object moves to a certain point in a curvilinear motion, the resultant force on the object can be decomposed into two components, along the direction of velocity and the direction of vertical velocity, where the component along the direction of velocity changes the magnitude of the velocity, and the component of the vertical velocity changes the direction of velocity.

The direction of velocity in curvilinear motion is always changing, because it is a vector, and it has both magnitude and direction. Regardless of whether the magnitude of the velocity changes or not, as long as the direction of the velocity changes, it means that the velocity vector changes, and there is acceleration, so the curvilinear motion is a variable speed motion. Acceleration can also be decomposed into two components, along the direction of velocity and in the direction of vertical velocity, where the component along the direction of velocity describes the speed of the change in magnitude of velocity, and the component in the direction of vertical velocity describes the speed of change in the direction of velocity.

There are three common curvilinear movements: flat throwing motion, oblique throwing motion, and uniform circular motion.

For example, for example, a flat throw, so the curvilinear motion is a variable speed motion: a flat throwing motion, where the components along the velocity direction describe how fast or slow the velocity changes, and an oblique throw.

In a variable acceleration curve, the component of the vertical velocity changes the direction of the velocity, and the resultant force on the object can be decomposed into two components, along the direction of velocity and the direction of vertical velocity. Acceleration can also be decomposed into two components, along the direction of velocity and in the direction of perpendicular velocity, as long as the direction of velocity changes, there is a magnitude, such as a uniform circular motion.

The acceleration of the motion of a uniform acceleration curve is constant, where the components in the direction of velocity change the magnitude of the velocity. Regardless of whether the magnitude of the velocity changes or not, since it is a vector quantity, the motion of the object is a curvilinear motion, and the component of the vertical velocity direction describes the speed of the change in the direction of velocity, and the direction of the initial velocity and the acceleration are not in the same straight line.

The acceleration of the variable acceleration curve is changed, but the magnitude of the velocity is reduced, which means that the velocity vector changes, but does not change the magnitude of the velocity, and the direction of the initial velocity is not in the same line as the acceleration.

An object motion trajectory is the motion of a curve. A common curvilinear motion is called "curvilinear motion". In curvilinear motion, the direction of the velocity of the object is likewise changed.

When the resultant force exerted on the object and its velocity are not in the same straight line; When the angle is greater than 90°, the force not only changes the direction of the object's velocity: when the angle between the force vector and the velocity vector is equal to 90°. The direction of velocity in curvilinear motion is always changing, and the force only changes the direction of the object's velocity

For example, uniform circular motion; When the included angle is less than 90°, the uniform acceleration curve movement. In curvilinear motion, when the object moves to a certain point, and increases the magnitude of velocity, oblique throwing motion, and uniform circular motion, there are three directions, and there is acceleration.

Curved motionAccelerationThe direction is the same as the direction of the resultant external force. According to Newton's second law.

It can be seen that the direction of acceleration is the same as that of the resultant force, and if the object moves in a curve, the direction of the resultant force and the direction of velocity are not in the same straight line, so the direction of the resultant force and the direction of velocity must be different, nor opposite, then the direction of acceleration and the direction of velocity are neither the same nor opposite, and in the case of other curvilinear motions such as elliptical orbits, the direction of acceleration and acceleration will change. The acceleration in circular motion is caused by the centripetal force of the fiber.

Or centrifugal force.

Late hunger is provided.

Features of curvilinear movements:

1.Characteristics of property code standby: the velocity direction of the object in curvilinear motion changes all the time, because the velocity is a vector, and the velocity change not only refers to the change of velocity, but also includes the change of direction, so the curvilinear motion is a variable speed motion.

2.Velocity characteristics: the tangent of the direction of the velocity of the particle at a certain time (or a certain position) and the curve at the position of the particle at this time.

The direction is consistent. 3.Force characteristics: when the object is moving in a curve, the direction and speed of the resultant force on the object must not be in a straight line, and there is an angle between the force and the velocity, which can be an acute angle or an obtuse angle.

It is also possible to be vertical.

4.Trajectory characteristics: The trajectory of the curvilinear motion is sandwiched between the force and the velocity, and is biased towards the direction of the force.

The direction of acceleration of the curvilinear motion. We can discuss it in two directions. Another from kinematics.

Disguise the acceleration of curvilinear motion. Well. One is tangential acceleration.

One is the normal angular velocity locust rock. And acceleration is the combined acceleration of these two.

I feel that from the perspective of strength, there is a lack of friendship. That is, the direction of the resultant external force.

The direction of the nanoacceleration, the acceleration of the curvilinear motion, changes with each point in the path of motion.

The acceleration at each point includes radial and tangential acceleration, and two or two accelerations are combined to add the magnitude and direction of the velocity of the point plus the hole.

If the arc of the curvilinear motion is regarded as an arc, then the direction in which the center of the circle is lacking is the direction of the resultant external force, that is, the direction of acceleration.

Note: Except for a few curvilinear accelerations that point to the center of the circle, the rest are roughly on the side of the center. The direction of the resultant force and the direction of acceleration are the same, the direction of the resultant force is always pointing to the inside of the trajectory, so the direction of acceleration is also always pointing to the inside of the trajectory, and the direction of velocity is along the tangent.

Directional. <>

There are two main curvilinear movements in high school:1. Flat throwing movement.

Acceleration is the acceleration due to gravity.

The direction is always straight downward;

2. Uniform circular motion.

The direction of acceleration is always perpendicular to the direction of velocity and points to the center of the circle.

The direction of acceleration and velocity are not in the same straight line, that is, the resultant force experienced by the object and the direction of its velocity are not in the same straight line, and the object is doing curvilinear motion.

Since it is a curvilinear motion, the acceleration will not be in the same straight line as the velocity. The acceleration is then broken down into a straight line perpendicular to the velocity and a collinear direction to the velocity.

The vertical is the centripetal force and does not affect the magnitude of the velocity.

The other component affects the magnitude of the velocity, and as for the off-split-leakage system of the angle, you can form a vector triangle and find it according to the trigonometric function. Jujube Imperial Zen.

Set the initial velocity v0

t, the speed is v0+at

The speed after 2t is V0+2AT

The first displacement in t v0t+at

The second displacement in t (v0+at)t+at

Subtract to get at

Extrapolated from the non-ascending or deterministic nature of v0 to the arbitrariness of two t's.

Accelerationa=(v-v0)/t

Instantaneous speed. Formula v=v0+at;

displacement formula x=v0t+ at ;

Average. v=x/t=(v0+v)/2

Export the formula v -v0 =2ax

The direction of velocity is the tangent direction of the curve. The normal acceleration of du is equal to zhiv r, and the tangential acceleration is related to them.

When judging whether an object is moving in a curved line, the key is to look at the relationship between the direction of the resultant force or acceleration of the object and the direction of velocity.

The velocity direction is the tangent direction of the curve. Calculation formula:

1. V (line.

DAO velocity) = δ back S δt=2 r t= r=2 rn (s represents arc length, answer t represents time, r represents radius, and n represents rotational speed).

2. (angular velocity) = δ δt = 2 t = 2 n ( indicates angle or radian).

3. t(period) = 2 r v = 2 = 1 n.

4. n** speed) = 1 t = v 2 r = 2 .

The direction of velocity is the tangent direction of the curve.

Normal acceleration is equal to v r

Tangential acceleration has nothing to do with them.

Not necessarily. For example, in a flat throwing motion, the acceleration is the acceleration of gravity, so it does not change; But in circular motion, acceleration is constant. Curvilinear motion is divided into regular and irregular motion.

In general, regular curvilinear motion, such as circular motion, is studied. In a uniform circular motion, the magnitude of the acceleration does not change, the direction does not change, and the direction of velocity changes all the time, that is, it always follows the tangent direction of the point.

The acceleration in curvilinear motion can be constant, but it does not mean that the acceleration of all curvilinear motion is constant. The acceleration of a uniform circular motion is directed towards the center of the circle, and the direction changes from moment to moment, and the resultant force is also directed to the center of the circle, which also changes from moment to moment. The trajectory of an object's motion is the motion of a curve, which is called "curvilinear motion".

When the resultant force on an object is not in the same line as its velocity, the object is in curvilinear motion.

The acceleration itself is generated by the resultant force experienced by the object, so in a curvilinear motion, the direction of the acceleration is always the same as the direction of the resultant force. When the resultant external force is a constant force, the object moves in a uniform variable speed curve; When the resultant external force is a variable force, the object moves in a non-uniform variable speed curve. Acceleration is also a vector quantity, which can also be decomposed into two components, along the direction of velocity and in the direction of vertical velocity, where the component along the direction of velocity describes the speed of the change in magnitude, and the component in the direction of vertical velocity describes the speed of the change in the direction of velocity.

Summary. Dear dear, it's a pleasure to answer your <>

When a point is doing curvilinear motion, is the full acceleration equal to the normal acceleration? Not equal. Full acceleration includes tangential acceleration and normal acceleration, while normal acceleration is only one component of total acceleration. When doing curvilinear motion, the velocity and acceleration of an object may change direction and magnitude at the same time, so it is necessary to decompose the acceleration into two components, tangential and normal.

Tangential acceleration is the acceleration component in the direction of the curve, whereas normal acceleration is the component of acceleration perpendicular to the direction of the curve. <>

When a point is doing curvilinear motion, is the full acceleration equal to the normal acceleration?

Dear dear, it's a pleasure to answer your <>

When a point is doing curvilinear motion, is the full acceleration equal to the normal acceleration? Not equal. Full acceleration includes tangential acceleration and normal acceleration, while normal acceleration is only one component of total acceleration. When doing curvilinear motion, the velocity and acceleration of the object may change direction and magnitude at the same time, so it is necessary to decompose the acceleration degree into two components: the cut-bend leakage direction and the normal direction.

Tangential acceleration is the acceleration component in the direction of the curve, whereas normal acceleration is the component of acceleration perpendicular to the direction of the curve. <>

Flowers are buried].

<> related extensions: When doing curvilinear motion, the state of motion of an object can be described in terms of velocity and acceleration. Velocity is a good vector quantity, its direction and magnitude represent the direction and velocity of the object, respectively, and acceleration is also a vector quantity, its direction and magnitude indicate the direction and magnitude of the object's acceleration, respectively.

In general, when an object moves in a curvilinear motion, its velocity and acceleration are not in the same direction, because the direction of the curve and velocity of the object's trajectory are different. Therefore, it is necessary to decompose the acceleration into two components, tangential acceleration and normal acceleration, to describe the motion state of the object on the curve. Tangential acceleration is the acceleration component of an object in the direction of the curve, that is, the acceleration of the object in the direction of the curve in the direction of the curve.

Whereas, normal acceleration is the acceleration component perpendicular to the direction of the curve, which represents the centripetal acceleration of the object on the curve, that is, the acceleration of the object towards the center of the curve. Therefore, when doing curvilinear motion, the full acceleration is not equal to the normal acceleration, it is equal to the vector sum of the tangential acceleration and the normal acceleration. The more curved the trajectory of an object, the greater the normal acceleration, which depends on the velocity and curvature of the object.

Normal Acceleration:Normal acceleration generally points to the centric acceleration, and when the particle moves in a curve, it points to the acceleration at the center of the circle (center of curvature), which is perpendicular to the tangent direction of the curve, which is also called normal acceleration. Centripetal acceleration is a physical quantity that reflects how fast or slow the direction of the speed of a circular motion changes.

The centripetal acceleration only changes the direction of the velocity, but does not change the magnitude of the velocity.

Tangential Acceleration:The acceleration along the tangential direction of the track is called the tangential acceleration when the particle moves in a curvilinear motion. Its value is the rate of change of linear velocity with wide wax to time.

When it is in the same direction as the linear velocity, the linear velocity of the particle increases; When in the opposite direction to the linear velocity, the linear velocity of the particle decreases. The combined vector of tangential acceleration and centripetal acceleration is the resultant acceleration of curvilinear motion.

In general, the moving object is affected by more than one force, and the resultant force direction of these forces often has an angle with the instantaneous velocity of the moving object, at this time, the combined external force is orthogonally decomposed along the tangent direction and normal direction of the trajectory, and the component force along the tangent direction of the trajectory is the tangential force, and the component force along the normal direction is called the normal force.

From Newton's second law, it can be seen that the effect of tangential force on a moving object produces acceleration, and this acceleration is tangential acceleration, which plays a role in changing the magnitude of instantaneous velocity.