Why do people keep the same speed as the train after jumping up on the train 5

When you don't leave the train, your speed is the same as the train, this is inertia.

If you jump high, it's fine at first, but when you jump off the train you're in a high-speed drop, and it won't be long before you can't keep up.

Inertia is as simple as that, when you come into contact with it, your speed is the same, and when you separate, you follow your own speed, but there is a process when you separate. (a bit wordy).

To be precise, you jump out of the train, and the speed of you and the train is definitely different. You may say this because you feel like you've jumped up and fallen back on.

You're at least a junior high school student, right? Then you should be able to understand that you are jumping up and doing a diagonal toss. Velocity is the combination of the horizontal speed of the train (when leaving the car) and the initial velocity of the vertical upward jump.

Right? Of course, this is based on the earth. In the air, you are subjected to gravity and air resistance.

This speed and the speed of the train are obviously different. However, the horizontal displacement of this oblique motion is determined by the horizontal velocity and time, and this horizontal initial velocity is the speed of the train, which does not decrease if the air resistance is not taken into account. So, in the middle of the vertical velocity that goes up and then goes down under gravity, your horizontal speed will remain the same as the train, and of course you'll fall back into the air after taking off.

The results of this analysis are the same as those of using the train as a reference. If you use a train as a reference, you're jumping on the ground.

Do I understand the explanation? ^

The theorem of inertia goes like this: whether it is a landscape or a motion, it has a property that maintains its original state of motion (the landscape is also a state of motion).

That is to say, all objects have an inertia that does not want to change their original state of motion.

In this problem, the premise is that the train is in motion, the person is in motion on the train, and the person jumps up with the inertia of the previous motion.

You have the same speed as the carriage return.

It's the same thing you throw something out of the car, as the air resistance gradually slows down.

If you can stay in the air and don't land, you will also be thrown away by the train.

Is it due to inertia.

Is it easy.

The speed of movement of the person on the train is also the same at this time, that is, it is relatively stationary with the train. When jumping up and leaving the car with both feet, people actually still move forward by inertia, and the jumping time is very short and not high, and they are quickly pulled back by gravity, so they still fall "in place".

Fall on the point where the train jumps. It's in place relative to the train, and it's moving relative to the earth. The reason for being in place relative to the train is that people are in motion on the train due to the motion of the train, and the relationship between any train is relatively stationary.

So it's like jumping on the ground.

If the person sitting in the train takes the train as a reference, he sees that the position of the goods on the train is constant, so the goods are relatively stationary with respect to the train. If you choose a tree or building on the ground as a reference object, people will see that the position of the goods to the building is constantly changing, so the goods move relative to the trees.

Inertia issues. The property of an object to remain at rest or in a state of uniform linear motion, inertia is an intrinsic property of an object. When a person jumps up on the train, although the train and the person have been separated, but due to inertia, the person and the train have the same initial velocity and the same direction at the moment of jumping, and the distance between the person and the train is the same in the time of vacancy, so when the person lands, the person will still fall in the same position.

The same position mentioned here is only relative to the person and the train, and when the person and the train are viewed as a whole, this position has changed compared to other references (such as railroad tracks), and is not the original position.

Inertia issues. When a person jumps on a train, although the train and the person have been separated, due to inertia, the person and the train have the same initial velocity and the same direction at the moment of jumping. The distance traveled by a person and a train is the same during the time it takes to vacate the air, so when a person lands, the person will still fall in the same position.

The same position here is only relative to the person and the train, and when the person and the train are viewed as a whole, this position has changed compared to other references (such as railroad tracks), and is not the original position.

Difference Between Inertia and Force

The physical meaning is different; Inertia refers to the property of an object that remains in a state of stationary slip or a state of uniform linear motion; Whereas, force refers to the action of an object on an object. Inertia is a property of the object itself, it always has this property, it has nothing to do with external conditions; Force is only present when the object interacts with the object, and it does not matter if the object is faithful.

The elements are different: inertia only has a size, no direction and no application point, and the size has no specific value and no unit; The force is composed of three elements: size, direction and point of action, and its magnitude has a specific value, and the unit is the ox.

Inertia is the property that keeps the state of motion of an object unchanged; The force action is to change the state of motion of the object.

The magnitude of inertia is only related to the mass of the object, while the magnitude of force is related to many factors (depending on the type of vision).

Because people and trains are relatively stationary, the whole process from the person jumping to the fall has the same speed as the train in the horizontal direction, that is, when it falls, it will also be at the origin.

To put it simply, how far the train travels during the whole process from the time the person jumps to the time it falls, and the same distance that the person travels horizontally. So, when you fall it, it's still at the origin.

To determine whether an object is at rest or in motion, it is necessary to choose the appropriate reference. Depending on the reference object selected, the state of motion of the object will not be the same. Relative rest means that two simple objects are moving in the same direction and at the same speed, and the position of the two objects has not changed relative to each other.

Landing on the train at the point where he jumped. It's in place relative to the train, and it's moving relative to the earth.

The reason for being in place relative to the train is that a person has a movement on the train due to the movement of the trainThe relationship between any train is relatively static, so it's like a person jumping on the ground. People jump on the train and fall on the spot, and playing table tennis on a train moving at a constant speed is no different from playing table tennis on the ground.

thingIn fact, such things abound in real life. We all know that the Earth is carrying us through the universe at a speed of 30 kilometers per secondThis is much faster than a train. However, we didn't feel anything wrong or any impact this speed had on our lives.

When we kick the ball with the same strength and angle, there will be no change in the distance between the landing point of the ball and the kicking point due to different directions.

Our way to explain this phenomenon is to use the principle of physics, the law of inertia. An object has inertia, and this property is the ability of an object to maintain its state of motionThat is, the ability to remain stationary or move in a straight line at a uniform speed. The magnitude of this ability is measured by quality.

The greater the mass, the greater the ability to maintain a state of movement. If there is no force acting on the object, then the state of motion of the object remains the same.

A person jumping on a train moving in a straight line at a constant speed does not experience any force in the direction of the train after jumping because the force has not changed, so this person still maintains a uniform linear motion synchronized with the train in the direction of the train.

I think this is the knowledge of physics, you are not moving in the car, but the car is moving, so you and the car are relatively stationary.

This is a very normal physical phenomenon, because it is a relative motion, so people do not move.

Because people were stationary relative to trains at that time, and had the same relative speed.

This is actually very simple, it's just a physical phenomenon, I've learned it in high school, relative motion.

The effect of inertia, but the number of seconds for a person to jump is too short, so the movement is ignored.

Because although the train is moving, the speed of movement is the same as the speed at which people jump.

Maybe it's a slow movement, and if it's fast, people will get hurt if they jump.

Because this is a physical phenomenon of relative motion, it is not like post-movement.

Actually, it's moving, but you don't notice it, and it's relatively still.

Update 1:Solution?

People jumping on the train will fall in the same position, as long as the train is moving at an average speed, because the train starts to accelerate, and then it will enter the average speed, at this time a space is formed in the train, and any object in the train moves at an average speed, including the passengers in the train are moving synchronously with the train at an average speed, so jumping on the train will fall in the same position But if the train accelerates or decelerates or brakes when a person jumps on the train, the person will not fall in the same position

When a person jumps on a train, he actually lands at the same point. According to Newton's first law, those who move are always moving, and those who are still are always still.

Reference: Will land within the same point!

It's just a matter of inertia.

If you jump in the same direction as the train, you won't be able to jump far.

But if you jump in the opposite direction to the direction of the train, you can jump farther than you can on the ground.

No, ......

If he was wrong, he didn't understand science at all.

On the train. If the train is moving at a constant speed, you can jump just as far.

But if you're facing the direction the train is going, and the train suddenly brakes, and you jump forward, you say what's going to happen, you'll jump farther.

Law of Inertia: Also known as Newton's first law.

All objects remain in a state of uniform linear motion or a state of rest without any external force until an external force forces it to change this state.

Trains travel at speeds of up to 100 kmh

If you jump up for 1 second and then fall to the train floor, and the train has moved meters by this time, will you move back meters, no.

The earth rotates faster.

1 second 465 meters (on the equator), can you jump a second and move a few hundred meters to the east, of course not.

First of all, people will fall back to where they were.

According to Newton's first law (i.e., the law of inertia): any object is always maintained without any external force.

Uniform linear motion.

state or state at rest until an external force forces it to change this state.

A train accelerates at a constant speed, and people jump.

It is only subjected to downward gravity, which is level with the train.

Direction of movement. at 90 degrees, gravity has no effect on it.

In order to maintain the same state as the train (i.e. move at a constant speed), it must fall back to the same place.