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Q:- If momentum is increased by 13% than k.e increase by %1. 37% 2.27% 3.47% 4.Non of these.​

Answer»

ANSWER:

option (4). none of these

Explanation:

when momentum (m x U) is INCREASED by 13%, the KE would go up by. ( 0.5 x m x V-square).

net rise in KE would be 100 x (1.3 x 1.3) / 2 = 34.5%. However, the near value is (C)



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