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Question

The particle executing simple harmonic motion has a kinetic energy K0cos2 ωt. The maximum values of the potential energy and the total energy are respectively

A
K0 and K0
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B
0 and 2K0
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C
K02 and K0
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D
K0 and 2K0
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Solution

The correct option is A K0 and K0
KE=K0cos2ωt
Therefore KEmax=K0
When potential energy is maximum at extreme points Kinetic energy is 0
Therefore due to conservation of energy PEmax=K0
At extreme point PE=K0 and KE=0 and total energy=K0

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