Q. The relation between acceleration and displacement of four particles are given below Which one of the particles is executing simple harmonic motion?

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A

$a_{x} = + 2 x$

11%

B

$a_{x} = + 2 x^{2}$

14%

C

$a_{x} = - 2 x^{2}$

25%

D

$a_{x} = - 2 x$

50%

Solution:

For SHM, $a_{x} \propto (- x)$ .