A metalsmith at a foundry drags a hunk of steel across the horizontal foundry floor by pulling on it with a 320 N force angled 28° above the floor. If the kinetic friction force due to the floor is essentially constant at 280 N, what is the net work done on the hunk of steel by both the metalsmith and kinetic friction over a distance of 11 m? A. 3100 J B. 3500 J C. 440 J D 28 1

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Chapter1: Units, Trigonometry. And Vectors
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A metalsmith at a foundry drags a hunk of steel across the horizontal foundry floor by pulling on it with a 320 N
force angled 28° above the floor. If the kinetic friction force due to the floor is essentially constant at 280 N, what
is the net work done on the hunk of steel by both the metalsmith and kinetic friction over a distance of 11 m?
A. 3100 J
B. 3500 J
C. 440 J
D. 28 J
Transcribed Image Text:A metalsmith at a foundry drags a hunk of steel across the horizontal foundry floor by pulling on it with a 320 N force angled 28° above the floor. If the kinetic friction force due to the floor is essentially constant at 280 N, what is the net work done on the hunk of steel by both the metalsmith and kinetic friction over a distance of 11 m? A. 3100 J B. 3500 J C. 440 J D. 28 J
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