Question

What happens to the kinetic energy of a body when its- (a) mass is doubled (b) velocity becomes three time​

Answer 1

Answer:

1..if mass doubled then kinetic energy also gets doubled.. 2..if velocity doubled with constant mass then kinetic energy becomes 4 times the initial kinetic energy.. 3..if mass doubled and velocity reduced to half kinetic energy will be half the initial value..

Answer 2

Explanation:

K. E = 1/2mv²

a) Mass doubled =1/2*2m*v²

= mv²

Kinetic energy is also doubled

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