Question
A particle of mass m is fixed to one end of a light spring of force constant k and unstretched length l . The system is rotated about the other end of the spring with an angular velocity ω , in gravity free space. The increase in length of the spring will be
Options :
mω²l/k
mω²l/k-mω²
mω²l/k+mω²
None of these
Answer :
mω²l/k-mω²
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