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Object connected to a spring to the ceiling

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Open-Response Homework Problem: Turn in again the practice test, only now make sure all your answers are correct. Don't just copy them from the posted solutions! Rather, make the necessary corrections to the work you already did, and scan it and turn it in again. This will help you understand better the content we covered in this exam, and remember. . . everything we do in this class continues to build, so the better you understand stuff now, the better you will be able to do later. In addition, do the following new problem, and submit it along with the practice test (the whole thing as a single pdf file, as usual):

Problem: An alien of mass 100 kg is on the floor of a spaceship (totally away from gravity) standing on a scale. What does the scale say his weight is when

(a) The spaceship is stationary.

(b) The spaceship is moving uniformly at half the speed of light.

(c) The spaceship is accelerating upward (relative to the scale) at 5m/s2.

(d) The spaceship is accelerating upward (relative to the scale) at 15m/s2.

(e) The alien attaches a 2kg object connected to a spring to the ceiling of his spacecraft. When the spaceship is accelerating at 5m/s 2 upward, the spring extends 0.1m. How much does the spring extend when the spaceship is accelerating at 15m/s 2 upward?

Reference no: EM131240698

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