A 989 kg automobile is moving at 15.6 m/s at a height of 5.0 m above the bottom of a hill when it runs out of gasoline. The car coasts down the hill and then continues coasting up the other side until it comes to rest. Ignoring frictional forces and air resistance, what is the value of h, the highest position the car reaches above the bottom of the hill?
Any help would be appreciated because I have been staring at this problem trying to figure out where to begin.
final PE= intialPE+initialKE
mgh=mg5+1/2 m 15.6^2
solve for h