A cricket ball travelling at towards a fielder is caught and brought to rest…
PHYSICS · Multi-part · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
A 0.20kg cricket ball travelling at 20ms−1 towards a fielder is caught and brought to rest uniformly in the fielder’s hands in 0.050s.
(i) Compute the impulse experienced by the ball while being caught.
(ii) Find the average force exerted on the ball by the fielder during the catch. State its direction relative to the ball’s initial motion.
(iii) The fielder can safely withstand a maximum average force of 80N. Calculate the minimum time over which he must bring the ball to rest so that the average force does not exceed this limit.
(iv) Explain briefly why professional fielders are advised to pull their hands backwards while catching a fast ball.