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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.
Related Questions: - When a ball is thrown up vertically with velocity vₒ,it reaches a maximum height
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
- If alpha, beta and gamma rays carry same momentum, which has the longest
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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
- When a ball is thrown up vertically with velocity vₒ,it reaches a maximum height
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
- If alpha, beta and gamma rays carry same momentum, which has the longest
- The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.
- The maximum particle velocity in a wave motion is half the wave velocity.
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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