Questions
If the coefficient of restitution be 0.5, what is the percentage loss of energy on each rebounding of a ball dropped from a height
detailed solution
Correct option is D
given that e=v/u or v=eu=0.5u.Now percentage loss of energy=12mu2−12mv212mu2×100% =12mu2−12mu2/412mu2×100% =34×100=75%Talk to our academic expert!
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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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