A 5.0 kg block moves in a straight line on a horizontal frictionless surface under the inuence of a force that varies with position as shown in the gure. The scale of the gure's vertical axis is set by F5 = 8.00 N. How much work is done by the force as the block moves from the origin to x = 8.0 m? 'U '2 4 l5 8 Position (m) Number I Units (D Current Attempt in Progress Afully loaded, slow-moving freight elevator has a cab with a total mass of 1300 kg, which is required to travel upward 46 m in 3.2 min, starting and ending at rest. The elevator's counterweight has a mass of only 890 kg, so the elevator motor must help pull the cab upward. What average power is required of the force the motor exerts on the cab via the cable? Number l Units 4}