Question

A player stop a football weighing 0.5kg which comes flying towards him a velocity of 10m/s.if the impact last for 1/50sec.and the ball bounce back with a velocity of 15m/s,then the average force involved is

Answer 1

The answer is :-625 N

Answer 2

Explanation:

Given mass of football is =0.5 kg

initial velocity is = 10m/s

final velocity is =15 m/s

Given time is= 0.02 s

average force=?

Momentum (P)= mv

=0.5*( -15-10 )

= -12.5kgm/ Avg Force = P/T

=12.5/0.02= 625N

This is the Answer!

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