Q.
The kinetic energy of a body is increased by 300%. The momentum of the body would increase by:
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a
50%
b
100%
c
150%
d
300%
answer is B.
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Detailed Solution
KE = P22m or P2 ∝ KE ----(i)KE2= KE1+ (300100)KE1 = 4KE1From (i) P2P1 = KE2KE1 = 4KE11KE1 = 2It means momentum becomes twice, hence increase in momentum is 100%
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