Physics, 17.10.2019 17:00, gervenonbrain
Astudent’s backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an elevator. when the elevator is accelerating downward at 23.8 m/s , the scale reads 60 n. (a) what is the mass of the backpack? (b) what does the scale read if the elevator moves upward while speeding up at a rate 23.8 m/s ? (c) what does the scale read if the elevator moves upward at constant velocity? (d) if the elevator had no brakes and the cable supporting it were to break loose so that the elevator could fall freely, what would the spring scale read? gold vs blue and black
Answers: 2
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