Simple harmonic motion: An object is executing simple harmonic motion. What is true about the acceleration of this object? (There may be more than one correct choice.)
A) The acceleration is a maximum when the displacement of the object is a maximum.
B) The acceleration is a maximum when the speed of the object is a maximum.
C) The acceleration is a maximum when the displacement of the object is zero.
D) The acceleration is zero when the speed of the object is a maximum.
E) The acceleration is a maximum when the object is instantaneously at rest.

Question

Quizplus · Accepted Answer

The acceleration in simple harmonic motion is proportional to the displacement and is maximum when the displacement is maximum. It is zero when the speed is maximum, and maximum when the object is at rest (at the turning points).

Simple Harmonic Motion: an Object Is Executing Simple Harmonic Motion