A toy car moves around a loop the loop track is 0.5m high. What is the minimum speed of the car at the top of the loop for it to stay on the track?

A toy car moves around a loop the loop track is 0.5m high. What is the minimum speed of the car at the top of the loop for it to stay on the track

v^2 / r ≥ g ... v^2 = g * r = 9.8 m/s^2 * 0.25 m

v ≥ √(9.8 * .25) m/s