Question

How much work would it take to push a `5 kg` weight up a `6 m` plane that is at an incline of `pi / 3`?

Answer 1

The work is `=254.6J`

Explanation:

The height of the plane is

`h=6sin(1/3pi)=6*sqrt3/2=3sqrt3m`

The work done is equal to the potential energy gained up the plane.

The mass is `=5kg`

The acceleration due to gravity is `=g=9.8ms^-2`

`W=mgh=5*9.8*3sqrt3=254.6J`