    Question

# Two balls of masses 2 kg and 4 kg are moved towards each other with velocities 4 m/s and 2 m/s respectively on a frictionless surface. The impulse of maximum deformation for the ball of 4 kg mass is (in N−s)

A
8.00
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B
8.0
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C
8
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Solution

## Linear momentum is conserved for the system Let v be the common velocity during maximum deformation. Applying linear momentum conservation equation : m1u1+m2u2=(m1+m2)v v=(m1u1+m2u2)(m1+m2)=2×4+4×(−2)2+4 v=0 m/s Impulse of deformation JD= change in momentum of any one body during deformation For 4 kg,JD=m2(v−u2) =4(0−(−2))=8 N-s  Suggest Corrections  0      Similar questions
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