Question

A player catches a ball of 200 g moving with a speed of 20 m/s if the time taken to complete the catch is 0.5 s , the force exerted on the player's hand is

(a) 8 n
(b) 4 n
(c) 2 n
(d) 0 ​

Answer 1

Answer:

Given

mass = 200g

initial velocity = 20m/s

final velocity = 0 m/s

time =0.5

Change in momentum = 0.2 × 20 = 4kg

Force = 4/0.5 = 8 N

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Answer 2

Answer:

mass =200kg

initial velocity=20m/s

finial velocity =om/s

time =0.5

momentum=0.2×20=4kg

force=8 n