Suppose a ball of mass m is thrown vertically upward with an

Last updated: 5/31/2023

Suppose a ball of mass m is thrown vertically upward with an initial speed v its speed decreases continuously till it becomes zero Thereafter the ball begins to fall downward and attains the speed v again before striking the ground It implies that the magnitudes of initial and final momenta of the ball are same Yet it is not an example of conservation of momentum Explain why