In the figure shown, the cart of mass $$6m$$ is initially at rest. A particle of mass m is attached to the end of the light rod which can rotate freely about A. If the rod is released from rest in a horizontal position shown, determine the velocity vrel of the particle with respect to the cart when the rod is vertical.

Question

Infinity Learn · Accepted Answer

When the rod becomes $$verticalmv1=6mv2$$⇒$$v1=6v2$$     ........(i)12mv12+126mv22=mgl$$      ........$$(ii)Solve$$ $$(i) and (ii) to $$getvrel=v1+v2=73gl$$

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