Question

A ball is thrown up at an angle with the horizontal. Then the total change of momentum by the instant it returns to ground is –

• A. Acceleration due to gravity × total time of flight
• B. Weight of the ball × half the time of flight
• C. Weight of the ball × total time of flight
• D. Weight of the ball × horizontal range

Answer 1

Answer: (C)

Weight of the ball × total time of flight

Answer 2

DP = Ft = mg(t)