How much work would it take to push a #15 kg # weight up a # 5 m # plane that is at an incline of # pi / 12 #?
My first step will be to convert to degrees - only because my calculator is in that mode.
The component of the weight of the 15 kg weight that points down the incline is
Therefore a force of 38 N pointed up the incline will be required to push this weight up the incline. The work of pushing it for 5 m will be
I hope this helps,