Question

How much work would it take to push a `2 kg` weight up a `7 m` plane that is at an incline of `pi / 12`?

Answer 1

`35.5J`

Explanation:

Work done `W=mglsintheta`
where `"mass"(m)=2kg`
`"length of the plane"(l)=7m`
`"Angle of inclination of the plane"(theta)=pi/12`
`"Acceleration due to gravity(g)"=9.8m/s^2`

`"Work done(W)"=2xx9.8xx7xxsin(pi/12)=35.5J`