Question

How much work would it take to push a `8 kg` weight up a `2 m` plane that is at an incline of `pi / 4`?

Answer 1

The component of downward acceleration due to gravity (`g`) along the inclined plane having angle of inclination `pi/4` is `=gsin(pi/4)`

So to push a mass of `m= 8kg` up a distance `d=2m` along the plane the net work done will be

`w=mxxgsin(pi/4)xxd=8xx9.8xx1/sqrt2xx2N=110.87N`