Questions
A ball impinges directly upon another ball at rest and is itself brought to rest by the impact. If half of initial kinetic energy is destroyed in the collision, the coefficient of restitution is
detailed solution
Correct option is C
Here, u2=0 v1=0From conservation of momentumm1u1=m2v2 1Final kinetic energy 12m2v22=1212m1u12 2From eq = (1) 12m2v2.ϑv=1212m1u1u1v2=12u1e=v2u1=12=0.5Talk to our academic expert!
Similar Questions
A steel ball is released from a height of 27 m onto a fixed horizontal steel plate. On bouncing the ball rises to a height of 3 m. Then co-efficient of restitution is
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