Asked by Robin

A roller coaster has a mass of 425 kg. It sits at the top of a hill with height 66 m. If it drops from this hill, how fast is it going when it reaches the bottom? (Assume there is no air resistance or friction.)
Answered by Elena
mgh = mv²/2
v=sqrt{2gh}
Answered by Anonymous
25
Answered by lh
36.0 m/s
Answered by Anonymous
thank you ih
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