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A single mass m, = 4.5 kg hangs from a spring in a motionless elevator. The spring is extended x = 15 cm from its unstretched length. 1) What is the spring constant of the spring?

A single mass m, = 4.5 kg hangs from a spring in a motionless elevator. The spring is extended x = 15 cm from its unstretched length. 1) What is the spring constant of the spring?

College Physics
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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please do questions #3 #5 #8 

4) Now the elevator is moving downward with a velocity of v = -2.1 m/s but accelerating upward with an acceleration of a = 3.9 m/st. (Note: an upward acceleration when the elevator is moving down means the elevator is slowing down.) What is the force the bottom spring exerts on the bottom mass? N Submit 5) What is the distance the upper spring is extended from its unstretched length? cm ( Submit 6) Finally, the elevator is moving downward with a velocity of v = -2.5 m/s and also accelerating downward at an acceleration of a = -2.3 m/s?. The elevator is: Ospeeding up Oslowing down O moving at a constant speed Şubmit 7) Rank the distances the springs are extended from their unstretched lengths: Ox, = X2 = X3 Ox, > x2 > X3 Ox, < x2 < X3 Submit + 8) What is the distance the MIDDLE spring is extended from its unstretched length? cm ( Submit ...... ........-
Transcribed Image Text:4) Now the elevator is moving downward with a velocity of v = -2.1 m/s but accelerating upward with an acceleration of a = 3.9 m/st. (Note: an upward acceleration when the elevator is moving down means the elevator is slowing down.) What is the force the bottom spring exerts on the bottom mass? N Submit 5) What is the distance the upper spring is extended from its unstretched length? cm ( Submit 6) Finally, the elevator is moving downward with a velocity of v = -2.5 m/s and also accelerating downward at an acceleration of a = -2.3 m/s?. The elevator is: Ospeeding up Oslowing down O moving at a constant speed Şubmit 7) Rank the distances the springs are extended from their unstretched lengths: Ox, = X2 = X3 Ox, > x2 > X3 Ox, < x2 < X3 Submit + 8) What is the distance the MIDDLE spring is extended from its unstretched length? cm ( Submit ...... ........-
Hanging Masses |12345 6789 m. A single mass m, = 4.5 kg hangs from a spring in a motionless elevator. The spring is extended x = 15 cm from its unstretched length. 1) What is the spring constant of the spring? N/m Submit 2) m. m, m. Now, three masses m, = 4.5 kg, m, = 13.5 kg and m, = 9 kg hang from three identical springs in a motionless elevator. The springs all have the same spring constant that you just calculated above. What is the force the top spring exerts on the top mass? N( Submit 3) What is the distance the lower spring is stretched from its equilibrium length? cm Submit
Transcribed Image Text:Hanging Masses |12345 6789 m. A single mass m, = 4.5 kg hangs from a spring in a motionless elevator. The spring is extended x = 15 cm from its unstretched length. 1) What is the spring constant of the spring? N/m Submit 2) m. m, m. Now, three masses m, = 4.5 kg, m, = 13.5 kg and m, = 9 kg hang from three identical springs in a motionless elevator. The springs all have the same spring constant that you just calculated above. What is the force the top spring exerts on the top mass? N( Submit 3) What is the distance the lower spring is stretched from its equilibrium length? cm Submit
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