# When a ball collides head on with a massive wall?

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## When a ball collides head on with a massive wall?

Since, Wall is massive , it will be rest for all time. That is , Hence, Speed of ball after collision is 2m/s.

## When a ball collides elasticly with an immovable wall fixed to the earth’s surface?

Explanation: For any elastic collision the vector sum of the total momentum of the system is zero. Here we have an elastic collision between the ball and a fixed wall. The velocity of the ball will always remain zero whereas the velocity (hence momentum) of the ball will totally revert after the collision.

## Is the collision of a ball with the wall elastic?

A ball of mass m moving with speed v strikes the vertical wall perpendicularly and bounce back with same speed. Collision is perfectly elastic.

## When a ball collides elastically with the floor?

Assertion: When a ball collised elastically with a floor, it rebounds with the same velocity as with it strikes. Reason: Momentum of earth + ball system remains constant. If both assertion and Reason are true and the Reason is the correct explanation of the assertion.

## What happens when a ball collides with a wall?

I understand that when a ball collides with a wall it exerts a force. By Newton’s 3rd law, the wall exerts an equal and opposite force back on the ball. As a result in an ideal world, the ball will bounce back at the same speed as before, conserving momentum.

## What is the reaction when a ball hits a wall?

From Newton’s second law, you know that the force on the ball is equal to the rate of change in momentum. Now, from Newton’s third law, you know that the force on the wall will be equal to the force on the ball but in the opposite direction.

## When a body collides with a wall or the ground?

7. When a body collides with a wall or the ground, what assumption do we make? Explanation: When a body collides with a wall or the ground, we consider that the mass of the body is negligible as compared to the mass of the wall or the ground.

## What is the velocity of the ball after collision with the wall?

So from the ground frame, the velocity of ball after collision with wall is 2u+v. A ball moving with a velocity v hits a massive wall moving towards the ball with a velocity u. An elastic impact lasts for time Δt.

## Which type of collision is present in a ball sticking to the wall?

When we throw a soft mudball to the wall, it sticks there but does not bounce back. This is also an example of inelastic collision with loss in kinetic energy.

## What is the rule for elastic collision?

In an elastic collision, the objects separate after impact and don’t lose any of their kinetic energy. Kinetic energy is the energy of motion and is covered in detail elsewhere. The law of conservation of momentum is very useful here, and it can be used whenever the net external force on a system is zero.

## Is momentum always conserved?

Momentum is always conserved because there is no external force acting on an isolated system (like the universe). Since momentum can never change, all of its components will always remain constant. Problems brought on by collisions should be resolved using the rule of conservation of momentum.

## What happens when two balls collide in an elastic collision?

The two objects bounce off each other, exchanging velocity. Interestingly, this result also holds for two objects colliding with equal but opposite momentum: the objects will swap momentum. This is a very useful result which allows us to simplify otherwise complex elastic collision problems.

## What happens when a sphere collides head?

It depends on what the spheres are made of, and the resulting type of collision (usually called either ‘elastic’ or ‘inelastic’); if they are something like metal spheres you’d get a Newton’s cradle type situation—not much energy is lost to heat or compression or anything else and pretty much all of the kinetic energy …

## What happens when a very heavy ball collides with a light stationary ball?

In a head-on elastic collision where the projectile is much more massive than the target, the velocity of the target particle after the collision will be about twice that of the projectile and the projectile velocity will be essentially unchanged. So, the second ball will move with a speed approximately equal to 2v.

## What happens when two objects collide head on?

In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).

## What will happen if an object collides head on with a smaller object that has the same speed?

Two objects that have equal masses head toward each other at equal speeds and then stick together. The two objects come to rest after sticking together, conserving momentum but not kinetic energy after they collide. Some of the energy of motion gets converted to thermal energy, or heat.