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Questions  

At what displacement is the KE of a particle performing SHM of amplitude 10cm is three times its PE ?

a
2.5 cm
b
5 cm
c
7.5 cm
d
10 cm

detailed solution

Correct option is B

K.E. = 3.P.E P.E. =12mω2x2;K.E.=12mω2A2−x2

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