An object is moving in a circular path of radius R.If the object moves through an angle of 30.0 degrees,then the angle is
A) 0.22 radians.
B) 0.52 radians.
C) 0.75 radians.
D) 1.30 radians.
E) 1.75 radians.

Question

Quizplus · Accepted Answer

We know that a full circle has an angle of 360 degrees or 2π radians.
So, for an object moving in a circular path of radius R, an angle of 30 degrees is equivalent to:
θ = 30/360 x 2π
θ = π/6 radians
Thus, the best choice is (B) 0.52 radians, which is the closest approximation to π/6.

An Object Is Moving in a Circular Path of Radius