Question

A ride at an amusement park moves the riders in a circle at a rate of 6.0 m/s. If the radius of the ride is 9.0 meters, what is the acceleration of the ride?

4.0 m/s2
0.67 m/s2
0.075 m/s2
54 m/s2

Answer 1

centripetal acceleration:
a = v^2 / r

plug in your velocity (v = 6.0 m/s) and your radius (r = 9.0m) and evaluate a.