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Question

Which one of the following represents simple harmonic motion?


A

Acceleration=-k0x+k1x2

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B

-kx+a

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C

kx+a

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D

kx

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Solution

The correct option is B

-kx+a


The explanation of the correct option (D):

Simple harmonic motion:

The equation for acceleration in SHM is given by a=-kmx

The explanation for the incorrect options:

  1. Since option (c) and option (d) have positive values for acceleration they are incorrect.
  2. ax therefore option (a) is also incorrect.

Hence, Option(B) is correct.


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