Homework 8 (Ch. 7, 8) 2 of 12 - /1 . . . View Policies Current Attempt in Progress In the figure, a frictionless roller coaster car of mass m = 800 kg tops the first hill with speed vo = 16.0 m/s at height h = 40.0 m. What is the speed of the car at (a) point A, (b) point B, and (c) point C? (d) How high will the car go on the last hill, which is too high for it to cross? Use g=9.81 m/s2. Vo First hill B h/2 C