How much work would it take to push a # 14 kg # weight up a # 2 m # plane that is at an incline of # pi / 6 #?

1 Answer
Aug 4, 2018

Answer:

I got: #137.2J#

Explanation:

Consider the diagram:

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with #d=2m#.

The work #W# will be done against gravity (the weight #mg# of the object) to reach the eight: #h=2sin(pi/6)# (from trigonometry);
so we get:

#W=mg*h=(14*9.8)*(2sin(pi/6))=137.2J#