A1200 kg car is approaching the hill shown in (figure 1) at 14 m/s when it suddenly runs out of gas. neglect any friction.

Unfortunately, unless you include a picture of the hill, you can't solve for what would happen. However,
you can find KE from the question, and use that to determine how high it could go on the slope.
KE= 1/2 mv^2
1/2*1200*196 = 117600 Joules.

Hope this helped!

So what is the question

The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.