Suppose a 180 kg motorcycle has two wheels and is heading toward a hill at a speed of 30.0 m/s. Assume the wheels to be approximately an annular ring with an inner radius of  R1 = 0.280 m  and an outer radius of  R2 = 0.440 m.  The mass of each wheel is 16.3 kg. (a) How high can it coast up the hill in meters, if you neglect friction? (Give your answer to at least 1 decimal place.)  m (b) How much energy, in joules, is lost to friction if the motorcycle only gains an altitude of 35.0 m before coming to rest?  J

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