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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
- Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
- If L and C denote inductance and capacitance,then the dimensions of L-C are
- A wire of resistance 4 ohm is stretched to twice its original length.
- When two small bubbles join to form a bigger one, energy is
- A leaf which contains only green pigments is illuminated by a laser light
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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