Question

If a marble of mass 4.0 kg and radius 0.2 m is rolling up an incline at 10 m/s and the incline is h meters high, what minimum height must that incline be in order for the marble to stop while on the incline?

Answer 1

V^2 = Vo^2 + 2g*h
h = (V^2-Vo^2)/2g
h = (0-10^2)/-19.6 = 5.1 m.