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There is no direct necessary relationship. They are all independent of each other.
When acceleration. A and v0 are in the same direction, and according to v=v0+at, it can be seen that the speed should be increased.
When the acceleration a and v0 are reversed, the velocity is to decrease according to v=v0-at.
If we insist on saying what acceleration is related to, then it depends on the resultant external force.
and mass, according to Newton's second law.
a=f/m.The direction of acceleration is the direction of the resultant external force.
To take the simplest example, when an object slides on a rough horizontal plane with a certain initial velocity, it is subjected to backward sliding friction.
At this point, the direction of the combined force (acceleration) is opposite to the direction of velocity), then it will decelerate, until it reaches 0, and it will come to rest in the horizontal plane.
The direction of a is defined by the formula a=(v-v0) t , which is the direction in which the velocity changes, that is, if the velocity increases, then it is the same as the original initial velocity, and vice versa.
If you still don't understand this, Hi ask me.
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If A and V0 are in the same direction, the object will move in a uniform accelerated linear motion, and if A and V0 are reversed, the object will move in a uniform and decelerated linear motion.
The premise here is that a is a fixed value and greater than zero, if a and v0 are in the same direction, then the object does a uniform acceleration linear motion, you can imagine pulling a small trailer with wheels on the ground, which goes from rest to the moment of motion.
If A and V0 are reversed, the object moves in a straight line with uniform deceleration, and you can imagine a car braking.
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The direction of a has nothing to do with v0 vt, in this question the direction of a and v0 is known, and there is some kind of conclusion under this condition. (Condition: A and V0 are in the same direction.) Conclusion: The object moves in a straight line with uniform acceleration).
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The direction of a and v0 vt have nothing to do with each other and do not affect each other. However, after the acceleration begins, they together affect the velocity of the object at any given moment.
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It's not hard to understand. The three quantities a, v0, and vt are any two quantities known, and the third quantity can be found.
If a, v0 are known in this problem, vt can be found.
And what you mean is that we know v0 and vt to find a
If you know any two, the third one can be found naturally.
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vt=v0+at
If A is the same as V0, VT will get bigger and bigger, and the same can be said for A and V0.
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When A and VO are in the same direction, they will do a uniform acceleration motion, and vice versa, they will do a uniform deceleration motion.
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The relationship between the two is that acceleration affects the change of velocity, if the acceleration direction of the object is the same as the direction of velocity, the velocity will gradually increase, and conversely, if the acceleration direction of the object is opposite to the direction of velocity, the velocity will decrease.
Velocity is a physical quantity that describes how fast or slow an object is moving, there are magnitudes and directions, and direction is the direction in which the object is moving. Acceleration is a physical quantity that describes how fast or slow the velocity changes, and there is magnitude and direction, and the direction is the direction of the velocity change. If the velocity is large, the acceleration is not necessarily large, and the acceleration can also be equal to zero.
Gravitational acceleration:
The acceleration of an object near the earth's surface due to gravity is called gravitational acceleration, also known as free-fall acceleration, which is denoted by g.
The direction of gravitational acceleration g is always straight downward. The acceleration due to gravity of any object is the same at the same height in the same area. The value of gravitational acceleration decreases with increasing altitude.
When the height of the object from the ground is much less than the radius of the earth, g does not change much. However, when the height above the ground is large, the value of gravitational acceleration g decreases significantly, and g cannot be considered as a constant at this time.
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Relationship: 1Acceleration describes how quickly and slowly the velocity changes, and velocity describes how quickly the position changes.
2.Acceleration is the rate of change of velocity versus time, and velocity is the rate of change of position versus time.
Acceleration:
is the ratio of the amount of velocity change to the time it takes for this change to occur δv δt, which is a physical quantity that describes how quickly and slowly the velocity of an object changes, usually expressed in a, and the unit is m s2. Acceleration is a vector quantity, and its direction is the direction of the change (quantity) of the velocity of the object, which is the same as the direction of the resultant external force.
Velocity: Scientifically used to express the speed of an object's motion. The speed is numerically equal to the distance traveled per unit of time. The formula for calculating velocity is: v=s t. The units of velocity are m s and km h.
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Acceleration is the rate of change (derivative) of velocity, and velocity is the integral of acceleration.
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The relation is how acceleration affects the change in velocity.
If the acceleration of the object is in the same direction as the velocity, the velocity will increase gradually.
Conversely, if the direction of acceleration of the object is opposite to the direction of velocity, the velocity decreases.
For example, if you run and there is a rope in front of you, and the direction is the same as the direction you are running, then your speed will increase. If a rope pulls you behind in the opposite direction, your speed will decrease.
If the acceleration is opposite to the direction of motion, then the velocity will decrease. If the speed decreases, it is called a uniform deceleration, not a uniform acceleration. But it can be called a uniform variable speed.
The velocity can be reduced to 0, and the velocity can become negative when reduced to 0. But you have to pay attention to what does a negative value of speed mean? Negative values are just the opposite direction of the edges, and negative values do not indicate the size. That is, when the speed is reduced to 0, it can be reversed.
This is like the example I gave above. If a rope pulls you behind in the opposite direction, your speed will decrease. When your speed decreases to 0, the rope pulls you back in reverse. The velocity is in the opposite direction, which is a negative value.
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Physical quantity.
Acceleration refers to the amount of change in the velocity of an object in a unit of time, and the unit of the chain is meters per second square (m s?).Velocity refers to the change in displacement of an object in a unit of time, and its unit is meters per second (m s), and the relationship between acceleration and velocity can be expressed by the definition of acceleration: a = v t, where a is the acceleration, δv is the change in velocity, and δt is the change between the time shed leaks.
Acceleration is a physical quantity that describes the acceleration or deceleration of an object, and is usually used to calculate the amount of change in the velocity of an object over a certain period of time.
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In physics, velocity, acceleration, and displacement are important concepts to describe the motion of an object. The relationship between them can be expressed using the following formula:
1.Speed filial piety code degree formula:
Velocity (v) represents the amount by which an object changes position per unit of time and is the ratio of displacement (x) to time (t). The average value of the velocity can be calculated using the following formula:
v = x / t
When the time interval approaches zero, the instantaneous velocity can be obtained:
v = lim(∆t → 0) ∆x / t
2.Acceleration Formula:
Acceleration (a) represents the amount of change in the velocity of an object per unit of time and is the ratio of the change in velocity (v) to time (t). The average value of acceleration side-elimination can be calculated using the following formula:
a = v / t
When the time interval approaches zero, the instantaneous acceleration can be obtained:
a = lim(∆t → 0) ∆v / t
3.Displacement Formula:
Displacement (x) indicates the distance an object travels from one location to another. The displacement can be calculated by multiplying velocity by time:
x = v * t
In addition, when the acceleration of the object remains constant, the displacement can also be calculated using the following formula:
x = v0 * t + a * t)^2
where v0 represents the initial velocity.
It is important to note that the above formula holds with constant acceleration. If the acceleration is not constant, be careful to use the equations of motion in calculus to solve it.
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If the direction of acceleration coincides with the direction of velocity, the object accelerates and vice versa. Acceleration is the ratio of the amount of velocity change to the time it takes for this change to occur δv δt, which is a physical quantity that describes the speed change of an object, and is usually expressed by a.
Speed has direction. Velocity is a physical quantity, and velocity can not only represent the speed of an object's motion, but also the direction of motion of an object. The velocity is still a vector, if the magnitude is 0, it means that it is stationary, then the direction is arbitrary, and it is not of research significance at this time.
There are also positive and negative directions for velocity, and if a positive direction is selected, a negative velocity indicates that the direction of velocity is opposite to the positive direction.
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