I don't understand how to do this at all.
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I don't understand how to do this question I need help please.
I don't understand how to do part b). I don't know what the Volume =. Please help to more clearly demonstrate the solution using the equivilent values.
A roller coaster has a vertical drop of 68.6m. The speed at the endof the drop is 35.6 m/s. The car is at rest at the end of the drop.What percent of the initial mechanical energy is dissipated byfriction?I don't understand how to do the problem at all. I've never doneone like this before, and I don't really even know where to begin.