A ball is bouncing elastically with a speed 1 m/s between walls of a railway compartment of size 10 m in a direction perpendicular to walls. The train is moving at a constant velocity of 10 m/s parallel to the direction of motion of the ball. As seen from the ground choose the correct option

A ball hits a vertical wall horizontal at 10 m/s bounces back at 10 m/s

A ball hits a vertical wall horizontal at 10 m/s bounces back at 10 m/s

When a ball hits a wall with a velocity of 50m/s and bounces back with the same speed, what is the change in velocity of the ball?

A ball is thrown from the ground so as to just clear a wall 10 m high at a distance of 20 m and falls at a distance of 40 m from the wall. The magnitude and direction of the projection velocity is

A ball is thrown from ground level so as to just clear a wall 4 m high at a distance of 4 m and fall at a distance of 14 m from the wall. Find the magnitude and direction of the velocity of the ball.

A ball is thrown from ground level so as to just clear a wall 4 m high at a distance of 4 m and fall at a distance of 14 m from the wall. Find the magnitude and direction of the velocity of the ball.

One train A 100m long is moving in a direction with a speed of 20m/s . Another train B 150m long is moving with a speed of 30m/s in the opposite direction.The train B crosses the train A in a time A) 5s B) 10s C) 18s D) None of these

A ball of mass 250 g moving with 20 m/s strikes a vertical wall and rebounds along the same line with a velocity of 15 m/s. If the time of contact is 0.1 s, the force exerted by the wall on the ball is

A ball is thrown from ground level so as to just clear a wall 4m high at a distance of 4 m and falls at a distance of 14 m from the wall. Find the magnitude and direction of the initial velocity.

A ball collides elastically with a massive wall moving towards it with a velocity of v as shown. The collision occurs at a height of h above ground level and the velocity of the ball just before collision is 2v in horizontal direction. The distance between the foot of the wall and the point on the ground where the ball lands, at the instant the ball lands, will be :