## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

The centripetal force is the net force which keeps an object moving in a circle. Therefore; $F_c = \frac{mv^2}{r}$ $F_c = \frac{(1500~kg)(25~m/s)^2}{100~m}$ $F_c = 9400~N$ The magnitude of the net force is 9400 N and this force points toward the center of the circle. The force of static friction between the ground and the tires provides this force.