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A string is wrapped over a uniform cylinder, as shown in diagr
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Medium
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Solving time: 3 mins

A string is wrapped over a uniform cylinder, as shown in diagram (side view). When cylinder is released, string unwraps without any slipping and cylinder comes down. Which of the following is true ?

SELECT MULTIPLE OPTION

A
Work done by Tension force on the cylinder is zero

B
Work done by the Tension is negative

C
Ratio of rotational kinetic energy and translational kinetic energy is

D
Ratio of rotational kinetic energy to translational kinetic energy is 2

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Book:

Physics Galaxy Mechanics Vol 1 (Ashish Arora)

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A string is wrapped over a uniform cylinder, as shown in diagram (side view). When cylinder is released, string unwraps without any slipping and cylinder comes down. Which of the following is true ?
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Text SolutionText solutionverified iconVerified

When cylinder comes down, at the point where string leaves contact with the cylinder is point of instantaneous rest, thus string does zero work.
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Question Text
A string is wrapped over a uniform cylinder, as shown in diagram (side view). When cylinder is released, string unwraps without any slipping and cylinder comes down. Which of the following is true ?
TopicSystem of Particles and Rotational Motion
SubjectPhysics
ClassClass 11
Answer TypeText solution:1
Upvotes80