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A 17 kg crate is to be pulled a distance of 20 m requiring 1210 J of work being done. If the job is done by attaching a rope, and pulling with a force of 75 N, at what angle is the rope held?

2007-11-29 15:19:14 · 1 answers · asked by Anonymous in Science & Mathematics Physics

1 answers

W = Fscosθ
θ = arccos(W/(Fs))
θ = arccos(1,210/(75*20))
θ ≈ arccos(0.8066667)
θ ≈ 36.22848° ≈ 36.228° ≈ 36° 13' 43"

2007-11-29 15:46:23 · answer #1 · answered by Helmut 7 · 0 0

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