Fewpal
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A light and a heavy object have the same momentum. Find out the ratio of their kinetic energies. Which one has a larger kinetic energy?

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Light object p1 = m1v1 and heavy object p2 = m2v2 

But p1 = p2 

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Which one has a larger kinetic energy

p1 = m1 v        p2 = m2 v2

but p1 = p2 or m1 v1 = m2v2

if m1 <  m2  then  v1 >  v2

(K.E)1 = 1/2 (m1 v1)2                      (K.E)2 = 1/2(m2 v2)2

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