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

question 80

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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