In 1990 walter arfeuille of belgium lifted a 2815-kg object, Ask an Expert

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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? ____J

(b) What magnitude force did he exert on the object during the lift, assuming the force was constant? _____kN

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