A man pulled an 11.0 kg object 14.2 cm vertically with his teeth. (a) How much...

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A man pulled an 11.0 kg object 14.2 cm vertically with his teeth. (a) How much work (in J) was done on the object by the man in this lift, assuming the object was lifted at constant velocity? (Include the sign of the value in your answer.) J (b) What total force (in N) was exerted on the man's teeth during the lift? (Enter the magnitude.) A man pulled an 11.0 kg object 14.2 cm vertically with his teeth. (a) How much work (in J) was done on the object by the man in this lift, assuming the object was lifted at constant velocity? (Include the sign of the value in your answer.) J (b) What total force (in N) was exerted on the man's teeth during the lift? (Enter the magnitude.)