A box rest on the floor of an elevator. Because of static friction, a force is required to start the box sliding across the floor when the elevator is (a) stationary, (b) accelerating upwards, and (c) accelerating downward. Rank the force required in these three situations from smallest to largest
If the elevator is moving upward gravity is pushing downward however once the elevator starts to descend gravity is pushing upward causing the box to move.
