Question

How much work would it take to push a `9 kg` weight up a `3 m` plane that is at an incline of `pi / 4`?

Answer 1

`W=132,435 sqrt2` `"Joules"`

Explanation:

`theta =180/cancel(pi)*cancel(pi)/4`
`theta =45^o`
`sin 45^o=sqrt2/2`
`h=3*sin 45^o`
`h=3*sqrt2/2` `height`
`W=m*g*h`
`"Work=Potential Energy"`
`W=9*9,81*3*sqrt2/2`
`W=132,435 sqrt2` `"Joules"`