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Questions  

A metal ball of mass 2 kg moving with speed of 36 km/h has a collision with a stationary ball of mass 3 kg. If after collision, both the balls move together, the loss in kinetic energy due to collisions is

a
80 J
b
40 J
c
60 J
d
160 J

detailed solution

Correct option is C

ΔU=12m1m2m1+m2(u1−u2)2

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