1. The problem statement, all variables and given/known data An automobile goes down a hill that has the parabolic cross section shown. (see image attached) Assuming that the horizontal component of the velocity vector has a constant magnitude v0, determine (a) the expression for the speed of the automobile in terms of x; and (b) the magnitude and direction of the acceleration. 2. Relevant equations y=h(1-x2/b2) 3. The attempt at a solution I have attached an image It gives a solution in (a) v0√1+(2hx/b2)2 and (b) 2hv02/b2 How do I proceed in (a) to come to the given solution?