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Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. On March 19, 1954, he rode a rocket-propelled sled that moved down a track at a speed of 632 mi/h. He and the sled were safely brought to rest in 1.40 s.

(a) Determine the negative acceleration he experienced. m/s2

(b) Determine the distance he traveled during this negative acceleration. m

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