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In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm...

In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth.

(a) How much work did Arfeuille do on the object?
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(b) What magnitude force did he exert on the object during the lift, assuming the force was constant?
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