How much work would it take to push a #9 kg # weight up a # 4 m # plane that is at an incline of # pi / 12 #?

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Answer 1 · 2017-04-04T07:28:22

The work is #=91.3J#

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The weight is #=9gN#

#theta=pi/12#

Distance, #d=4m#

The component of the weight parallel to the plane is

#F=Wsintheta=9gsin(pi/12)#

The work done is

#W=F*d=9gsin(pi/12)*4=91.3J#