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Physics 8 Online
OpenStudy (anonymous):

A construction worker is carrying a load of 40 kilograms over his head and is walking at a constant velocity. If he travels a distance of 50 meters, how much work is being done? A. 0 joules B. 2.0 × 102 joules C. 2.0 × 103 joules D. 1.9 × 104 joules

OpenStudy (anonymous):

work= force . distance= force * distance* cos(theta) in your case theta=90, cos(90)=0 so work is 0

OpenStudy (anonymous):

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