First slide

Simple harmonic motion

Question

A particle moving along the x-axis executes simple harmonic motion, then the force acting on it is given by
Where A and K are positive constants

Moderate

A

– A Kx
B

A cos (Kx)
C

A exp (– Kx)
D

A Kx

Solution

For S.H.M. $F = - kx .$
$∴$ Force = Mass $\times$ Acceleration $\propto - x$
$\Rightarrow$ F = – Akx; where A and k are positive constants.

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