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Watkins Gray

01/11/2024 · Senior High School

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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 \( 62.3 \) 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 \( 71.8 kg \) in each case. 

 

What was the kinetic energy of Howard and his bicycle? 

\(\square \) kJ 

Answer
expertExpert-Verified Answer

Greene Peters
Certificated Tutor
4.0 (37votes)

the kinetic energy of John Howard and his bicycle was approximately 166.13 kJ

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