The Raptor is an outside loop roller coaster in which riders are belted into seats resembling ski-lift chairs.
1. Draw the free body diagram of the rider at the highest position in the loop.
2. Calculate using the work and energy method, the velocity v1 of the rider at the highest position in the loop.
3/ Determine the minimum speed v0 at which the seat should coast down from the top of the hill, so that passengers can just make the loop without leaving contact with their seats.