Solve the problem.
-A ball on the end of a string is spinning around a circle with a radius of 5 centimeters. If in 13 seconds a central angle of $\frac { 1 } { 5 }$ radian has been covered, what is the angular speed of the ball?
A) $\frac { 13 } { 5 }$ radians per sec
B) $\frac { 5 } { 13 }$ radians per sec
C) 65 radians per sec
D) $\frac { 1 } { 65 }$ radian per sec

Question

Quizplus · Accepted Answer

The angular speed, $\omega$, is given by $\omega = \frac{\theta}{t}$, where $\theta$ is the angle in radians and $t$ is the time in seconds. Substituting $\theta = \frac{1}{5}$ radian and $t = 13$ seconds gives $\omega = \frac{1/5}{13} = \frac{1}{65}$ radian per sec.

Solve the Problem 15\frac { 1 } { 5 }51​ Radian Has Been Covered, What Is the Angular Speed of String

Solve the Problem $\frac { 1 } { 5 }$ Radian Has Been Covered, What Is the Angular Speed of String