1.

Body of mass 1 kg is rotating in a circular path of radius 1 m with constant velocity of 5 rev/sec. What is the work done in one complete revolution?​

Answer»

EXPLANATION:

ACCORDING to WORK energy theorem, ΔK.E.=W and here work is DONE by the gravitational force.

⇒ΔK.E.=W=mg (2r)=1×10×2(1)=20 J



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