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A factory worker pushes a package along a broken conveyer belt from (4,0) to (4,0) with a 50N force at a 30 degree angle to the conveyor belt. How much mechanical work is done if the units of the conveyor belt are metres?
 one year ago
 one year ago
A factory worker pushes a package along a broken conveyer belt from (4,0) to (4,0) with a 50N force at a 30 degree angle to the conveyor belt. How much mechanical work is done if the units of the conveyor belt are metres?
 one year ago
 one year ago

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dave0616Best ResponseYou've already chosen the best response.1
W= F*displacement*cos(angle of displacement) W= 50N * 8m * cos(30) W= 50N * 8m * 0.86603 W=346.4 J
 one year ago

muffinBest ResponseYou've already chosen the best response.0
so the 8 if from 4 to 4
 one year ago

dave0616Best ResponseYou've already chosen the best response.1
yea, because you cant have a negative distance (displacement is simply a distance). They assigned 4 and 4 to throw you off. They are just using a Cartesian coordinate system and didn't set their reference point to 0
 one year ago
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