If the elevator is moving... a) upward with increasing speed, the upward force of the cable on the elevator must be greater than the weight of the elevator, b) with constant velocity upward, the upward force of the cable on the elevator must be equal to the weight of the elevator, c) downward and speeding up, the upward force of the cable on the elevator must be less than the weight of the elevator, d) moving upward and speeding up, upward force of floor on person must be greater than the weight of the person.