a tennis ball of mass m = 0.075kg is thrown at a wall with a speed of v = 15m/s. It strikes the wall at a 45˚ angle and rebounds with the same speed at 45˚. What is the impulse given by the wall?
impulse = Change in mass x Change in velocity
The Attempt at a Solution
Since the velocity is not changing once the ball rebounds from the wall the impulse is the same as it is when it strikes the wall?