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10-11-2019
Physics

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3. A roller coaster car sits at rest at the top of a hill, 23.5 meters tall. What will be the final
velocity of the car at the bottom of the hill?

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MathPhys MathPhys

10-11-2019

Answer:

21.5 m/s

Explanation:

KE at bottom = PE at top

½ mv² = mgh

v = √(2gh)

v = √(2 × 9.8 m/s² × 23.5 m)

v = 21.5 m/s

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