Question

A car begins to descend a 15.0o hill at a speed of 75.0 Km/hr and the driver puts the clutch in and lets the car coast down the hill with a vertical drop of 152 m. At the bottom of the hill the road begins to climb again at an angle of 8o until the road has risen 75.0 m from its lowest point. Neglecting friction, what is the car’s speed when it tops the second hill?

Answer 1

K.E. 2 = K.E. 1 + [m * g * (h1 - h2)]

the slope angles are spurious info