A race car, traveling at a constant speed of 50 m/s, drives around a circular track of radius 250 m. What angular acceleration does it experience?
a. 6.3 × 102 rad/s²
b. 1.0 × 101 rad/s²
c. zero
d. 1.0 × 104 rad/s²
e. 2.0 × 104 rad/s²