Question

How much work would it take to push a `8 kg` weight up a `5 m` plane that is at an incline of `pi / 12`?

Answer 1

`W~=101,56J`

Explanation:

`alpha=pi/12*180/pi=15^o`
`h=5*sin 15^o~=1,294 m`
`E_p=m*g*h`
`"Potential energy gained by object raised from ground"`
`E_p=W" work done equal to the Potential Energy"`
`W=m*g*h`
`W=8*9,81*1,294`
`W~=101,56J`