Use the formula

`omega=V/r`

where `w` is the angular velocity, V is the linear speed and r is the radius of the wheel.

Convert r from inches to miles.

1 inch = 0.000016 miles

r= 14 in x 0.000016 miles/inch = 0.000224 miles

`omega=55 /0.000224=245,536` radians/hour

**Thus the angular velocity is 245,535 radians/hour.**