An object travels in a circle of radius 2.0 m with a constant speed of 4.0 m/s. What is the direction of its acceleration?
A) Toward the center of the circle
B) Normal to the plane of the circle
C) Insufficient data given for determination
D) Tangential to the circle
E) None of these

Question

Quizplus · Accepted Answer

The acceleration of an object moving in a circle at constant speed is directed toward the center of the circle. This is known as centripetal acceleration.

An Object Travels in a Circle of Radius 2