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 *
1 point
(a) exert larger force on the ball
(b) increase the force exerted by the balls on the hands
(c) increase the rate of change of momentum
(d) decrease the rate of change of momentum

Answer 1

Answer:

Explanation:

option d : To decrease the rate of change of momentum

Answer 2

To decrease the rate of change of momentum a goalkeeper pulls his hands backward.

Explanation:

• After holding the ball shot at the game, A goalkeeper in the game football often pulls his hands behind.
• This is because he/she wants to decrease the rate of change of momentum.
• Momentum refers to the product of mass and velocity.
• By keeping the hands behind a goalkeeper reduces the force exerted by the ball on the hands of the goalkeeper.
• Hence, to decrease the rate of change of momentum a goalkeeper pulls his/her hands behind.