A particle of mass m attached with an ideal string of length ℓ , can perform vertical circular motion. A and C are the points where string becomes horizontal. If velocity of mass at lowest point is V

Question

A particle of mass m attached with an ideal string of length ℓ , can perform vertical circular motion. A and C are the points where string becomes horizontal. If velocity of mass at lowest point is V then :-

TestHub · Accepted Answer

If 0 ≤ v < 2 g ℓ ​ remain between B & C v = 2 g ℓ ​ just reaches to point C 2 g ℓ ​ ≤ v < 5 g ℓ ​ string slacks between C & D v ≥ 5 g ℓ ​ it completes vertical circle at lowest point T = mg + ℓ m ​ ( 2 g ℓ ) = 3 mg

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