A Roller-Coaster Car Has a Mass of 500 Kg When

question 31

Multiple Choice

A roller-coaster car has a mass of 500 kg when fully loaded with passengers. The car passes over a hill of radius 15 m, as shown. At the top of the hill, the car has a speed of 8.0 m/s. What is the force of the track on the car at the top of the hill?

• A)7.0 kN up
• B)7.0 kN down
• C)2.8 kN down
• D)2.8 kN up
• E)5.6 kN down

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