Question

In simple harmonic motion(simple pendulum), the displacement is maximum when the:

	A.	velocity is maximum
	B.	speed is maximum
	C.	kinetic energy is maximum
	D.	velocity is zero

Answer 1

In case of simple harmonic motion ( for example, the motion of a simple pendulum), the object moves back and forth between two fixed points (or, end points) . The object upon reaching one end point, reverses its direction which means at the end points, the velocity of the object becomes zero. The displacement of the object is maximum (from the equilibrium point) when it reaches one of the end points where the velocity of the object becomes zero.

Option (D) is the correct choice.