Rankers Physics

Equation of SHM: Practice Problem & Solution

A particle executes S.H.M. along x-axis. The force acting on it is given by: (1994, 88)
$A \cos (kx)$
$Ae^{-kx}$
$Akx$
$-Akx$

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Equation of SHM. Understanding the underlying formula is key to arriving at the correct answer below:

For simple harmonic motion, the restoring force must be proportional to the negative of the displacement.\nThe equation $F = -Akx$ is the only one that satisfies the condition $F \propto -x$.

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