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OpenStudy (anonymous):
Help please. A roller coaster has a mass of 275 kg. It sits at the top of a hill with height 85 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.)
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OpenStudy (surry99):
hi what have you tried so far? Do you have a diagram of the problem?
OpenStudy (anonymous):
There is no diagram however I am in need of the equation.
OpenStudy (surry99):
Sketch a diagram of the problem and I will help you.
OpenStudy (anonymous):
|dw:1416168931946:dw|
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