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In 1899, Charles M. Mile a Minute Murphy set a record for speed on a bicycle by pedaling for a mile at an average of

In 1899, Charles M. "Mile a Minute" Murphy set a record for speed on a bicycle by pedaling for a mile at an average of 62.3 mi/h (27.8 m/s) on a track of planks set over railroad ties in the draft of a Long Island Railroad train. In 1985, a record was set for this type of "motor pacing" by Olympic cyclist John Howard who pedaled at 152.2 mi/h (68.04 m/s) in the wake of a race car at Bonneville Salt Flats. The race car had a modified tail assembly designed to reduce the air drag on the cyclist.Assume that the mass of bicycle plus rider is 85.9 kg in each case.

What was the kinetic energy of Howard and his bicycle?

_______kJ

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