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muffin
 2 years 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?
muffin
 2 years 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?

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dave0616
 2 years ago
Best ResponseYou've already chosen the best response.1W= F*displacement*cos(angle of displacement) W= 50N * 8m * cos(30) W= 50N * 8m * 0.86603 W=346.4 J

muffin
 2 years ago
Best ResponseYou've already chosen the best response.0so the 8 if from 4 to 4

dave0616
 2 years ago
Best ResponseYou've already chosen the best response.1yea, 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
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