A body of mass m = 4 kg starts moving with velocity v_(0) in a straight line is such a way that on the body is being doen at the rate which is proportional to the square of velocity as given by P = beta v^(2) where beta = ( 0.693)/( 2). Find the time elapsed in seconds before velocity of body is doubled.

A body of mass m = 4 kg starts moving with velocity v_(0) in a straigh

1.	A body of mass m = 4 kg starts moving with velocity v_(0) in a straight line is such a way that on the body is being doen at the rate which is proportional to the square of velocity as given by P = beta v^(2) where beta = ( 0.693)/( 2). Find the time elapsed in seconds before velocity of body is doubled.
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