Let the KE be 'x'
Therefore for body of mass 1kg
= 1/2 X 1kg X v12= KE --(i)
Again,
KE= 1/2 X 4kg X v22---(ii)
Comparing 1 and 2,
We get
=1/2 X 1kg X v12=1/2 X 4kg X v22
=v12/v22=4
= v1/v2= 2--(i)
Mass of body 1/ mass of body 2 = 1/4---(ii)
Multiplying (i) X (ii)
=1/4 X 2
=1/2
= 1 : 2
Therefore ratio of momentum of 1: 2 = 1:2
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