Question

A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to
(a) exert larger force on the ball
(b) reduce the force exerted by the ball on hands (c) increase the rate of change of momentum
(d) decrease the rate of change of momentum

Answer 1

it reduces the rate of momentum

Explanation:

it is because the goalkeeper slowly takes his hand backward as to increase the rate in which the energy transfers from football to hands of goalkeeper so that the force is distributed over the hand in a longer period of time and thus the goalkeeper feel less push