Question

A body oscillates harmonically with amplitude 0.05 m. At a certain instant of time its displacement is 0.01 m and acceleration is 1.0 $m{s}^{-2}$ . What is the period of oscillation ?

• A. 0.1 s
• B. 0.2 s
• C. π/10 s
• D. π/5 s

Answer 1

The correct option is D

π/5 s

WKT in magnitude

$a={\omega }^{2}x1={\omega }^{2}0.01\Rightarrow \omega =10T=\frac{2\pi }{\omega }=\frac{\pi }{5}$