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There is a small hole in a table. A stri...

There is a small hole in a table. A string of length 1m passes through it. Two bodies of masses 70g and 100g are attached at its ends. The 100g mass hangs freely at a depth of 60 cm from the table. If this mass is to be in equilibrium, the other mass should rotate in a circle with a frequency equal to

A

`4 pi// 140 Hz`

B

`pi//140 Hz `

C

`pi//sqrt140 Hz `

D

`(sqrt140)/(4pi) Hz `

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-RIVISION EXERCISE-FRICTION (CIRCULAR MOTION)
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  11. A hemispherical bowl of radius R is set rotating about its axis of sym...

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  13. A particle of mass 'm' is suspended from the ceiling through a string ...

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  14. A chain of 100 links is 1m long and has a mass of 2kg. With the ends f...

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  15. Three point masses each of mass 'm' are joined together using a string...

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  17. There is a small hole in a table. A string of length 1m passes through...

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