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Question

For a partcle executing S.H.M., the kinetic energy K is given by K=K0cos2ωt. The maximum value of potential energy is:

A
K0
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B
K02
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C
Not obtainable
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D
Zero
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Solution

The correct option is A K0
Given, in simple harmonic motion, the kinatic energy,
K=K0cos2ωt

If the kinetic energy is zero, the potential energy will be maximum and vice-versa,

Since total energy of the system will remain conserve
PEmax=KEmax

PEmax=K0(cos2ωt)max

PEmax=K0×1

PEmax=K0

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