****Will vote lifesaver, help!!**** Assume that the numerical value of the initi

Question

****Will vote lifesaver, help!!****

Assume that the numerical value of the initial speed of a roller coaster is 10. 00 m/s, the initial height is 300. 0 m, and the mass of the coaster is 1000. 0 kg. What is the speed of the coaster at point A? m/s What is the speed of the coaster at point B? m/s What is the speed of the coaster at point C? m/s How high will it go on the last hill, which is too high to cross? m If we substitute a second coaster with twice the mass, what is the speed of this coaster at point A? m/s What is the speed of this coaster at point B? m/s What is the speed of this coaster at point C? m/s How high will it go on the last hill?

Explanation / Answer

a) 10m/s b) By energy conservation, v(B) = 55.67m/s c) By energy conservation again, v(C) = 78.1 m/s d) 305 m. e) Speed remains unchanged.

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