Question

If the velocity of a body is doubled and mass is reduced to one-fourth of its initial value, the K.E is: (*) Doubled (*) Four-fold (*) Same (*) Halved​

Answer 1

Answer:

The velocity will be remains same.

Explanation:

K.E = 1/2 x M x V²

If we Double the velocity and reduce the mass to 1/4 , then:

= 1/2 x M/4 x (2v)²

= 1/2 x M/4 x 4v²

= 1/2 x M x v²

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