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A weight mg is suspended from the middle...

A weight mg is suspended from the middle of a rope whose ends are at the same level. The rope is no longer horizontal. What is the minimum tension required to completely straighten the rope is:

Text Solution

Verified by Experts

From the diagram
`2T sin theta= mg`
`T=(mg)/(2 sin theta)`
The rope will be straight when `theta=0`
`T=(mg)/(2 sin0^(0))= alpha`
The tension required to completely straighten the rope is infinity
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