A ball of mass m falls vertically from a height h and

Last updated: 6/5/2023

A ball of mass m falls vertically from a height h and collides with a block of equal mass m moving horizontally with a velocity v on a surface The coefficient of kinetic friction between the block and the surface is 0 2 while the coefficient of restitution e between the ball and the block is 0 5 There is no friction acting between the ball and the block The velocity of the block just after the collision decreases by A 0 5 2gh C 0 1 2gh B 0 D 0 3 2gh m A 0