NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A stone of mass 0.4 kg is attached to a string of length 3 m and is whirled in a horizontal circle. If the string can with stand a tension of 9 N. The maximum velocity with which the stone can be whirled is

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Correct option: A

8.2 m/s

Option A (8.2 m/s) is correct because the maximum velocity is calculated using the formula

T = mv^2/r

, where T is the tension, m is the mass, v is the velocity, and r is the radius.

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