A 1,404-kilogram roller coaster car is approaching a hill. At its top, the hill

Question

A 1,404-kilogram roller coaster car is approaching a hill. At its top, the hill can
be described by a circle with radius 8 m.

Draw a proper freebody diagram for the car at the top of the hill (point B).

Employ Newton's Law to find the speed that the car must have at point B such that the normal force acting on the car is 38% of the weight.

Now employ conservation of energy to find the speed required at point A, such that the car passes point B at the required speed. Draw an energy bar graph.

Below answer with the required speed at point A with units of m/s.

Explanation / Answer

is there any reference figure given or we only have to draw it?

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