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A mass m moves in a circle on a smooth horizontal plane with velocity v₀ at a radius R₀. The mass is attached to string which passes through a smooth hole in the plane as shown.
The tension in the string is increased gradually and finally m moves in a circle of radius R₀/2. The final value of the kinetic energy is
Options
(a) 1/4 mv₀²
(b) 2 mv₀²
(c) 1/2 mv₀²
(d) mv₀²
Correct Answer:
2 mv₀²
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion of system of Particles and Rigid Body
(73)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A potentiometer wire of length 100cm has a resistance of 10Ω. It is connected in series
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- If light emitted from sodium bulb is passed through sodium vapour,
- A circular coil of radius 10cm and 100 turns carries a current 1 A.
- SI unit of magnetic dipole moment is
Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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