Question

How much work would it take to push a `2 kg` weight up a `3 m` plane that is at an incline of `pi / 3`?

Answer 1

The work is `=50.92J`

Explanation:

Resolving in the direction parallel to the plane `↗+`

As the component of the weight perpendicular to the plane do not perform work

`F=mgsintheta`

The mass is `m=2kg`

The angle is `theta=1/3pi`

`F=2gsin(1/3pi)=16.97N`

The distance is `d=3m`

The work is

`W=F*d=16.97*3=50.92J`