Question

wA 1150 kg car is on a 8.70° hill.Using X-Y axes tilted down theplane, what is the y-componentof the weight?(Unit = N)

Answer 1

The y component

$W_y=mg\text{ sin}\theta$

where mg is the weight of the car i.e. 1150kg

and

$\theta=8.7^0$

Substituting the known values in the equation we get,

$W_y=1150\times\sin (8.7^0)=173.95\text{ N}$

That is y component of W is 173.95 N