Question

A body of mass 2 kg colloids with a wall with speed
100m/s and rebounds with the same speed the force
exerted on the wall is 2x104 N, the time of contact
is
a) 1/50 sec b) 1/25 sec c) 1/60 sec d) 1 sec​

Answer 1

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*Answer

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U = 0 m/s

v = 100m/$

t = 1/50

secusing first equation of motion

v = u+at

=> 100 = 0+a(1/50)

100 = a/50

=> 5000 m/s²

force = mass × acceleration

force = (2 × 5000) N

= 10000 newtons

✌️✌️hope this helps

Answer 2

Explanation:

10000 Newton's

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