First slide

Simple harmonic motion

Question

A body executes simple harmonic motion. The potential energy (P.E.), the kinetic energy (K.E.) and total energy (T.E.) are measured as a function of displacement x. Which of the following statements is true

Easy

A

P.E. is maximum when x = 0
B

K.E. is maximum when x = 0
C

T.E. is zero when x = 0
D

K.E. is maximum when x is maximum

Solution

In S.H.M., at mean position i.e. at x = 0 kinetic energy will be maximum and pE will be minimum. Total energy is always constant.

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