A sphere is suspended by a thread of length l . The minimum horizontal velocity which has to be imparted to the sphere for it to reach the height of suspension is

Question

A sphere is suspended by a thread of length l . The minimum horizontal velocity which has to be imparted to the sphere for it to reach the height of suspension is, 2 g l, 2 g l, g l, 4 g l

MARKS App · Accepted Answer

Kinetic energy at A = 1 2 mu 2 Potential energy at B = m g h For conservation of energy, 1 2 mu 2 = mg l ⁡ u = 2 g l ⁡

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