The particle executing simple harmonic motion has a kinetic energy K 0 cos 2 ꞷt. The maximum values of he potential energy and the total energy are respectively:
and K 0
Text Solution
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In simple harmonic motion, the total energy of the particle is constant at all instants which is totally kinetic when particle is passing through the mean position and is totally potential when particle is passing thought the extreme position.
The variation of PE and KE with time is shown in figure, by dotted parabolic curve and solid parabolic
curve repetitively.
Figure indicates that maximum values of total energy, KE and PE of SHM are equal.
Now, E K = K 0 cos 2 ꞷt
∴ (E K ) max = K 0
So, (E) Total = K 0
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