An inertial force can be felt by observers
A) at rest in any medium.
B) moving much more slowly than the speed of light.
C) in a vacuum.
D) whose reference frame moves in a circle.

Question

Quizplus · Accepted Answer

An inertial force can be felt by observers whose reference frame moves in a circle. This is known as a centrifugal force, which is an example of an inertial force. It arises due to the observer's frame of reference undergoing circular motion, and is not an actual force acting on the system.

An Inertial Force Can Be Felt by Observers