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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?
 
If a body of mass m is moving with a speed v, then its Kinetic Energy. {E_k} is given by the expression,
 
 
Mass of the object (m) =  kg
 
When velocity is doubled, Kinetic energy of the object =  J
 
When velocity is increased three times, Kinetic energy of the object =  J