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When a stone is suspended by a wire the extension is l. When the wire is rotated by holding the top end it traces a conical pendulum of semi vertical angle x. the extension of the wire is?

When a stone is suspended by a wire the extension is l. When the wire is rotated by holding the top end it traces a conical pendulum of semi vertical angle x. the extension of the wire is?

Grade:11

1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

Dear Raghav


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F = mgcosx + mw2Lsinx sinx

  =mgcosx + mw2Lsin2x


so extension in wire is

  =FL/AY   where A is the cross sectional area of wire and Y is the young modulus of wire

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