Answer to Question #98366 in Physics for Himanshu kumar

Question #98366

Pooja spins a ball of mass 'm: attached to a spring length ' r ' around her head with velocity Vi.If the ball spirits in half of its mass instantaneously,what is it's new velocity Vf ?

Expert's answer

From the conservation of angular momentum:

"0.5mV_fr=mV_ir"

"V_f=2V_i"

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