Roller coaster malfunction forces riders to descend by foot from 213-foot peak

A roller coaster travels in a circular path. (a) Identify the forces on a passenger at the top of the circular loop that cause centripetal acceleration. Show the direction of all forces in a sketch. (b) Identify the forces on the passenger at the bot- tom of the loop that produce centripetal acceleration. Show these in a sketch. (c) Based on your answers to parts (a) and (b), at what point, top or bottom, should the seat exert the greatest force on the passenger? (d) Assume the speed of the roll

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Roller coaster malfunctions with riders stuck spinning backward

6 kids hurt after roller coaster malfunctions at John's Incredible Pizza Company in Riverside

Washington State Fair roller coaster malfunctions on slope, rescuers forced to manually push ride