The 200 kg elevator in the Physics department is at REST on the ground floor whilst being suspended by a thick steel rope with tension, T. The elevator now accelerates upwards at 4 m/s/s. During this upward acceleration, the rope tension, T, in the steel rope will be .. Explain your answer in RATIONALE section! O A. 1200 N whilst it were stationary and now 2800 N whilst accelerating upwards. B. 2000 N whilst it were stationary and now 1200 N whilst accelerating upwards. OC. 2000 N whilst it were stationary and now 2800 N whilst accelerating upwards. D. 2800 N whilst it were stationary and now 1200 N whilst accelerating upwards.

The 200 kg elevator in the Physics department is at REST on the ground floor whilst being suspended by a thick steel rope with tension, T. The elevator now accelerates upwards at 4 m/s/s. During this upward acceleration, the rope tension, T, in the steel rope will be .. Explain your answer in RATIONALE section! O A. 1200 N whilst it were stationary and now 2800 N whilst accelerating upwards. B. 2000 N whilst it were stationary and now 1200 N whilst accelerating upwards. OC. 2000 N whilst it were stationary and now 2800 N whilst accelerating upwards. D. 2800 N whilst it were stationary and now 1200 N whilst accelerating upwards.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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. We now focus on the take-off stage b to c in Figure 1. Squat stage lowest point of squat GRF, in terms of mg Stand still a A. mg B. 2.25 mg C. 3 mg D. 0.5 mg 0+ -0.6 -0.4 -0.2 Time (s) Step on force plate 0 push off stage In air 0.4 0.6 a. What is the force at the lowest point of the squat (point b) if the person's mass m= 80 kg? Enter to 2 significant figures N b. What is the peak force during the push-off if the person's mass m= 80 kg? Round to the upper grid mark on the graph. Enter to 2 significant figures N For questions d-f, use the answers from the previous questions to solve for the current question. c. The take-off stage in the force-time graph occurs between the points b to c. From the plot, what is the approximate average GRF, (in terms of mg) during take-off (between b and c)? A rough estimate is fine.
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