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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Transcribed Image Text:4) Now the elevator is moving downward with a velocity of v = -2.1 m/s but accelerating upward at an acceleration of a
= 3.9 m/s. (Note: an upward acceleration when the elevator is moving down means the elevator is slowing down.)
What is the magnitude of the force the upper spring exerts on the upper mass?
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5) What is the distance the lower spring is extended from its unstretched length?
cm Submit
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+
6) Finally, the elevator is moving downward with a velocity of v = -2.5 m/s but accelerating downward at an
acceleration of a = -2.3 m/s?.
Compare the magnitude of the NET force on each mass:
OF, = F2 = F3
OF, > F2 > F3
O F2 > F3 > F1
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7) What is the magnitude of the net force on the middle mass?
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Transcribed Image Text:m
A single mass (m, = 4.1 kg) hangs from a spring in a motionless elevator. The spring constant is k = 345 N/m.
1) What is the distance the spring is stretched from its unstretched length?
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2)
m.
m.
m2
Now, three masses (m, = 4.1 kg, m2 = 12.3 kg and m3 = 8.2) hang from three identical springs in a motionless elevator.
The springs all have the same spring constant given above.
What is the magnitude of the force the bottom spring exerts on the lower mass?
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3) What is the distance the middle spring is stretched from its equilibrium length?
cm
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