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Now take a look at this force diagram, this force is going down the plane must be balance assuming
it's not accelerating by the force going up the plane.
Put another way, the push force and that's the force that the guy pushing on the block was exerting
must also be equal to 500N.
Just like in the previous examples of the pulleys, we don't just want to know the force we have to exert
to move this object up to a height of 1 m.
We want to know the distance over which we must exert that force.
Can you use your knowledge of trigonometry and geometry to tell me over what distance
must we observe this 500 N force to move it from the bottom down here all the way to the top.