If a $\mathrm{.}5$kg toy car is rolling down a $30-$degree incline:

a$.$ What is the car$$s acceleration in the x$$ direction?

b$.$ If the car sat at the top of the ramp at a height of $4$m$,$ what distance does the car travel down the ramp to the bottom?

c$.$ What is the car$$s final velocity at the bottom of the ramp?

d$.$ What is the free$-$body diagram?

e$.$ What force was applied on the car?