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A roller coaster vehicle with a mass of 750 kilogram starts at rest from a point 32 meter above the ground. At point B, it is 16 meter above the ground.
(a) Find the initial potential energy of the vehicle?
kJ
(b) Find what is the potential energy at point B?
(c) If the initial kinetic energy was zero and the work done against friction between the starting point and point B is 14 000 Joule, determine the kinetic energy of the vehicle at point B?
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