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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?

6 years ago


Answers : (1)


Dear Raghav


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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