MediumNEET TEST
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A particle executes Simple Harmonic Motion (SHM) with an amplitude of 30 cm. At what distance from the mean position is the potential energy equal to 8 times the kinetic energy?
A
10√2 cm
B
20√2 cm
C
15√2 cm
D
30√2 cm
Explanation
U/K = x²/(A² − x²) = 8 ⇒ x = 20√2 cm.
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