You push a box of mass 20.9 kg with your car up to an icy hill slope of irregular shape to a height 4.6 m. The box has a speed 12.7 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) to a flat area before sliding into a box larger box of mass 10 kg. The boxes then fall off a sheer cliff together to the ground (with no drag). (a) What is the velocity of the pair just before hitting the ground? { Coordinate Form } V = 0 + -14.11 m/s 2 (b) What is the velocity of the pair just before hitting the ground? { Vector Form } V = + 2 ) (c) How much does the kinetic energy change in the situation? (d) What is the path basis just before impact? < < = 8 + + = + + = 8 + + 2 2 2 Submit Answer Viewing Saved Work Revert to Last Response