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Throwing and Catching at Same Height

A body of mas...

Question

A body of mass 2 kg is thrown up at a velocity of 10 m/s.find the kinetic energy of the body at the time of throw. Also, find the potential enery of the body at the higest point ( g= 10m/s sq.)

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Solution

$K i n e t i c e n e r g y = 1 / 2 * m * v^{2} = 1 / 2 * 2 * 10^{2} = 100 j o u l e P o t e n t i a l e n e r g y a t t h e t o p = k i n e t i c e n e r g y a t t h e b o t t o m d u e t o e n e r g y c o n s e r v a t i o n . S o, P o t e n t i a l e n e r g y a t t h e t o p = 100 j o u l e$

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