efiannemarie9 efiannemarie9

14-03-2021
Physics

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Marcy pulls a backpack on a wheels down the 100m hall. The 60N force is applied at an angle of 30° above the horizontal. How much work is done by Marcy?

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Abimbim9 Abimbim9

14-03-2021

Answer:

Work= Fcos∆×S

W=60N×cos 30⁰×100

W=60×0.866×100=5196.1J

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