Question

Which one of the following equations of motion represents simple harmonic motion ?

• A. Acceleration = $kx$
• B. Acceleration = $-k_{0}x+k_{1}x2$
• C. Acceleration $=-k(x+a)$
• D. Acceleration = $k(x+a)$

Answer 1

The correct option is C Acceleration $=-k(x+a)$

In SHM, $F_{restoring}\propto -x$
Also Force$\propto$ acceleration