How much work would it take to push a $9 k g$ $9 kg$ weight up a $4 m$ $4 m$ plane that is at an incline of $\frac{π}{12}$ $pi / 12$ ?

Question

1511 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-04-04T07:28:22

The work is $= 91.3 J$ $=91.3J$

enter image source here

The weight is $= 9 g N$ $=9gN$

$θ = \frac{π}{12}$ $theta=pi/12$

Distance, $d = 4 m$ $d=4m$

The component of the weight parallel to the plane is

$F = W sin θ = 9 g sin (\frac{π}{12})$ $F=Wsintheta=9gsin(pi/12)$

The work done is

$W = F \cdot d = 9 g sin (\frac{π}{12}) \cdot 4 = 91.3 J$ $W=F*d=9gsin(pi/12)*4=91.3J$

How much work would it take to push a 9 kg 9kg9 kg weight up a 4 m 4m 4 m plane that is at an incline of pi / 12 π12 pi / 12 ?