Solve the Problem $\frac { 1 } { 18 }$ Radian Has Been Covered, What Is the Linear Speed of with a Radius

Solve the problem.
-An object is spinning around a circle with a radius of 20 centimeters. If in 17 seconds a central angle of $\frac { 1 } { 18 }$ radian has been covered, what is the linear speed of the object?

A) $\frac { 170 } { 9 } \mathrm {~cm}$ per sec
B) $\frac { 20 } { 153 } \mathrm {~cm}$ per sec
C) $20 \mathrm {~cm}$ per $\mathrm { sec }$
D) $\frac { 10 } { 153 } \mathrm {~cm}$ per sec