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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
- In a parallel plate capacitor with plate area A and charge Q, the force on one plate
- A particle A suffers on oblique elastic collision with a particle B that
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
- A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg.
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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