Question

In SHM at the equilibrium position
a) amplitude is minimum
b) acceleration is zero
c) velocity is maximum
d) potential energy is maximum

• A. all are true
• B. b, c, d are true
• C. b, c true
• D. a, b, d true

Answer 1

The correct option is C b, c true

At equilibrium amplitude is minimum only if, mean position is choosen as equilibrium position acceleration $a=-{\omega }^{2}x.$
$\therefore$ at equilibrium position $a=o$
Velocity is maximum
$\therefore$ Kinetic energy is maximum.
$\Rightarrow$ Potential energy is minimum