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प्रश्न
The total energy of the body executing S.H.M. is E. The kinetic energy of the body, when the displacement is half of the amplitude is ______.
पर्याय
`"E"/2`
`"E"/4`
`(3"E")/4`
`sqrt3/4` E
MCQ
रिकाम्या जागा भरा
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उत्तर
The total energy of the body executing S.H.M. is E. The kinetic energy of the body, when the displacement is half of the amplitude is `underlinebb((3"E")/4)`.
Explanation:
E = `1/2"m"omega^2"A"^2 ⇒ "K" = 1/2"m"omega^2("A"^2 - "A"^2/4)`
= `3/4(1/2"m"omega^2"A"^2) = 3/4"E"`
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