Correct Answer: A
From principle of conservation of linear momentum,
(0.05 x 200) (0.95 x 0) = (0.05 0.95) x V (since collision is inelastic).
10 0 = V
Thus V = 10m/s.
Recall Kinetic Energy = 12mv2
∴ K.E = 1/2 (0.05 0.95) x 102
K.E = 1/2 (1 x 100) = 50 J.
I was about to solve to this place ∴ K.E = 1/2 (0.05 0.95) x 102
but don't know how you got the answer as 50j here K.E = 1/2 (1 x 100) = 50 J.?
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Asked by Black boy on 27th April, 2023
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