A point is rotating with uniform circular motion on a circle

A point is rotating with uniform circular motion on a circle of radius r.

Find v if r = 3 inches and = 7 rad/sec.

Please show your work, thanks!

Solution

given r = 3 inches and = 7 rad/sec.

linear speed v =r*w

linear speed v =3*7

linear speed v =21 inch/sec