Question

How much work would it take to push a `8 kg` weight up a `7 m` plane that is at an incline of `pi / 12`?

Answer 1

The work done to push the given weight is 142 Joules.

Explanation:

If a body of mass 'm' slides down on an inclined plane of inclination '`theta`' through a distance 'S', then work done by gravity is `W=(mgsintheta)S`.

By substituting the values we get,
`W=[8kgxx9.8m/s^2xxsin(pi/12)]xx7m`
`=>W=142.039~~142` Joules.