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A massless, inextensible string of lengt...

A massless, inextensible string of length 1 m has a breaking strength of 1 kg wt. A stone of mass 0.2 kg tied to one end of the string is made to move in a vertical circel. Can te stone decribe the vertical circle? `(g=10 ms^(-2))`

Text Solution

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Hint : `T_("max")="1 kg wt"`
`=1xx10=10N`
Let tension of lowest point be T.
`T_("min")=6mg`
`T_("min")=6mg=6xx0.2xx10=12N gt T_("max")`.
So, the stone cannot describe the vertical circle.
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