Questions
A mass m is moving with velocity v collides inelastically with a bob of simple pendulum of mass m and gets embedded into it. The total height to which the masses will rise after collision is
detailed solution
Correct option is A
For inelastic collision, linear momentum is conserved m v =( m+m)v'v'=v2 ⇒h =v'22g=v28g⇒mv1=2m2⇒v2=v12Loss in K.E. = Gain in P.E. =12mv12−12(2m)v22=2mgh ⇒4mgh=mv12−mv122=mv122=mv22⇒h=v28gTalk to our academic expert!
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A tennis ball is released from height h above ground level. If the ball makes inelastic collision with the ground, to what height will it rise after third collision
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