Woman weighing 75 kg stand on a spring scale in an elevator. During the first 3 seconds of motion from rest, the Tension T in the hoisting cable is 8,300N. The total mass of the elevator, woman and scale is 750 kg. a. Find the vertical acceleration of the elevator. b. Find the Reading R of the scale in Newton’s during this interval. c. Find the upward velocity of the elevator at the end of 3 seconds.

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