Question

How much work would it take to push a `5 kg` weight up a `2 m` plane that is at an incline of `pi / 6`?

Answer 1

Work done is 49 Joules.

Explanation:

If a body of mass 'm' slides down on a smooth inclined plane of inclination '`theta`' through a distance 'S' work done by gravity to push body is
`W=(mg sintheta)S`
Considering acceleration due to gravity `g=9.8m//s^2` and substituting the given values in above equations we get,
`W=[((5kg)(9.8m//s^2)(sin(pi/6))][2m]`
`:.`work done `W=49`Joules.