A-roller-coaster-has-a-vertical-loop-with-radius-of-15m May 2026

The centripetal acceleration must equal the acceleration due to gravity to keep the car from falling:

) and the normal force from the track. For the "minimum" speed (the point where the car just stays on the track), the normal force is zero. We use: ≈is approximately equal to 2. Set up the equation a-roller-coaster-has-a-vertical-loop-with-radius-of-15m

, the car must maintain a speed where the centripetal force at the top of the loop is at least equal to the force of gravity. The minimum speed is approximately (or about 1. Identify physical constants The centripetal acceleration must equal the acceleration due