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Energy Concepts for Combined Mass

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You and your bicycle have a combined mass of 95 kg. When you reach the base of an overpass, you are travelling along the road at 3.0 m/s. If the vertical height of the overpass is 5.20 m and your speed at the top is 1.5 m/s, how much work have you done in getting to the top? (Ignore friction and any inefficiency in the bike or your legs)

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Solution Summary

Energy concepts for combined mass are examined. A bicycle combined mass is determined.

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Kinetic Energy at the base of the overpass = KE1 = ½mv^2 = ½*95*32 = 427.5 J
Kinetic Energy at the top of the overpass = KE2 = ...

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