The kinetic energy of an object of mass, m moving with a velocity of 5 ms-1 is 25 J. What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity is increased three times?
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k.E is 1/2 m v^2......so v is doubled kE becomes 4tyms i.e. 100 and when increased 3tyms it becomes 9 tyms i.e. 225
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