A cricket ball of mass is moving horizontally towards a fielder with a speed of
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum
Problem
A cricket ball of mass 150g is moving horizontally towards a fielder with a speed of 20m s−1. The fielder brings the ball to rest in 0.050s by moving his hands backward while catching it.
(i) Calculate the impulse imparted to the ball during the catch.
(ii) Determine the average force exerted by the fielder on the ball.
(iii) Verify numerically that the impulse obtained in part (i) equals the change in momentum of the ball.
(iv) If the same ball is brought to rest in 0.025s instead, what would be the average force on the ball? Comment briefly on the practical significance of your result.