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Introductory Physics Homework Help
Calculate the work done moving a crate
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[QUOTE="shepherd882, post: 6078156, member: 651442"] [h2]Homework Statement [/h2] you push a box out of a carpeted room and along a hallway with a waxed linoleum floor. While pushing the crate 2 m out of the room you exert a force of 34 N; while pushing it 6 m along the hallway you exert a force of 13 N. To slow it down you exert a force of 40 N through a distance of 2 m, opposite to the motion. How much work do you do in all? [h2]Homework Equations[/h2] Work = Force * displacement [h2]The Attempt at a Solution[/h2] Fnet = 34 + 13 + (-40) = 7 N Displacement = 2 + 6 + 2 = 10m Work = 7*10 = 70 J (the answer's supposed to be 189 J; i thought about including friction for the carpet and linoleum floor for fnet, but there is no coeffiecient of friction given so I'm stuck) [/QUOTE]
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Introductory Physics Homework Help
Calculate the work done moving a crate
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