A 735-kg roller coaster car has a speed of v0 = 6.9 m/s as it reaches the highest point of a h = 25.5 m fall. 1. What is

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answerhappygod
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A 735-kg roller coaster car has a speed of v0 = 6.9 m/s as it reaches the highest point of a h = 25.5 m fall. 1. What is

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A 735-kg roller coaster car has a speedof v0 = 6.9 m/s as itreaches the highest point ofa h = 25.5 m fall.
1. What is the car's speed at the bottom of thefall, vf in m/s?
2.Find the car's speed at the bottom of thefall, vf, in m/s, if friction does 30 kJof work on the system. (Hint: think about whether friction isadding to or removing energy from the system).
Please Show all work / calculations and a diagram
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