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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A small ball is projected horizontally between two large blocks. The ball is given a velocity V m/s and each of the large blocks move uniformly with a velocity of 2 V m/s. The ball collides elastically with the blocks. If the velocity of the blocks do not change due to the collision, then find out the velocity of the ball after the 2nd collision.

A small ball is projected horizontally between two large blocks. The ball is given a velocity V m/s and each of the large blocks move uniformly with a velocity of 2 V m/s. The ball collides elastically with the blocks. If the velocity of the blocks do not change due to the collision, then find out the velocity of the ball after the 2nd collision.

A glass ball collides with a smooth horizontal surface (xz plane) with a velocity V=ai-bj. If the coefficient of restitution of collision be e the velocity of the ball just after the collision will be