If an object is pushed 5m along a certain incline, its height above the ground increases by 2m. If the incline were frictionless it would require a force of 196N exerted parallel to the incline to push a 50kg crate up the incline at a constant speed. How much work would be done in pushing the crate up the incline?
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Work is equal to force times displacement times the cosine of the angle.
The tricky part of your problem is finding theta. Since I'm on my phone I can't draw the picture as I would like to, but you are going to take the arctan of 5/2 to find the angle.
The rest of this problem is plug and chug.
I'm sorry, I said arc tan and it should be arcsin because sin=opp/hyp.
And work will be:
Sorry for the mistakes. All should be correct now