Question #200425
Vans Kull is pulling on a rope to drag his backpack to school across the ice. He pulls upwards and rightwards with a force of 12.7 Newtons at an angle of 55 degrees above the horizontal to drag his backpack a horizontal distance of 209 meters to the right. Determine the work (in Joules) done upon the backpack.
1
Expert's answer
2021-05-30T13:23:25-0400

W=Fscos⁡55°=12.7⋅209⋅cos⁡55°=1522 (J)W=Fs\cos55°=12.7\cdot209\cdot\cos55°=1522\ (J) . Answer

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