Question

An object of mass 40 kg and having velocity 4 m/s collides with another object of mass 60 kg,
having velocity 2 m/s in the same direction. The loss of energy when the collision is perfectly
inelastic is
(A) 392 J
(B) 440J
(C) 48 J
(D) 1103​

Answer 1

Answer:

48 j

Explanation:

mass of the body m1=40kg

velocity u1=4m/s

m2=60kg

u2=2m/s

energy lost in perfectly inelastic collision k.e=1/2m1u1^2+1/2m2u2^2

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