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A mass 1kg attached to the end of a flex...

A mass 1kg attached to the end of a flexible rope of diameter `d = 0.25 m`is raised vertically by winding the rope on a reel as shown. If the reel is turned uniformly at the rate of `2r.p.s.` What is the tension in rope. The inertia of rope may be neglected.

A

`16.28 N`

B

`10N`

C

`20N`

D

`1N`

Text Solution

Verified by Experts

The correct Answer is:
A
Tangential acceleration `(dv)/(dt)=omega(dr)/(dt)`
`omega=4pi,(dr)/(dt)=0.5, a=2pi`
`T-mg=ma,T=mg+ma`
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