Conceptual relationship between force and motion and Reasoning without mathematical equations
An elevator is pulled upward so it moves with increasing upward speed—the force exerted by the cable on the elevator is constant and greater than the downward gravitational force exerted by Earth. When the elevator is moving up mediumfast, the force exerted by the cable on the elevator changes abruptly to just balance the downward gravitational force of Earth—the sum of the forces that the cable and Earth exert on the elevator is now zero. Now what happens to the elevator? Explain. Represent your answer with position-versus- time and velocity-versus-time graphs. What assumptions did you make?
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