1.

At what displacement is the `KE` of a particle performing `SHM` of amplitude `10cm` is three times its `PE`?A. `2.5cm`B. `5cm`C. `7.5 cm`D. `10cm`

Answer» Correct Answer - B
`K.E. = 3.P.E.`
`P.E. = (1)/(2) m omega^(2)x^(2), K.E. =(1)/(2) m omega^(2) (A^(2)-x^(2))`


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