2) Scale reading in accelerating elevator: The 10.0 kg mass is on a scale, and the 8.00 kg mass hangs from the other end of the string over the pulley as illustrated and the system is in an elevator on earth. (Pulley & string massless, frictionless.) (See PSL 5.2,5) a) If zero acceleration: what is the scale reading in Newtons? Explain. b) Now the elevator and the entire mass and pulley system accelerate together. The reading on the scale is now 9.80 N. Based on this, what do you think is the direction of acceleration? (Gut feeling.) c) Draw FBDs for both the 10 kg and the 8 kg masses (for the accelerating system). d) Use N2L to determine the (i) string tension and (ii) acceleration of the system. Does the direction of the acceleration agree with your answer earlier? Elevator 10 kg scale Since everything accelerates together in the same direction, make this your positive direction for all objects. 8 kg

College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter6: Uniform Circular Motion And Gravitation
Section: Chapter Questions
Problem 28PE: Part of riding a bicycle involves leaning at the correct angle when making a turn, as seen in Figure...
icon
Related questions
Topic Video
Question
2) Scale reading in accelerating elevator: The 10.0 kg mass is on a scale, and the 8.00 kg mass hangs
from the other end of the string over the pulley as illustrated and the system is in an elevator on earth.
(Pulley & string massless, frictionless.) (See PSL 5.2,5)
a) If zero acceleration: what is the scale reading in Newtons? Explain.
b) Now the elevator and the entire mass and pulley system accelerate together. The reading on the
scale is now 9.80 N. Based on this, what do you think is the direction of acceleration? (Gut
feeling.)
c) Draw FBDs for both the 10 kg and the 8 kg masses (for the accelerating system).
d) Use N2L to determine the (i) string tension and (ii) acceleration of the system. Does the direction
of the acceleration agree with your answer earlier?
Elevator
10 kg
scale
Since everything accelerates together in the same direction, make this your positive
direction for all objects.
8 kg
Transcribed Image Text:2) Scale reading in accelerating elevator: The 10.0 kg mass is on a scale, and the 8.00 kg mass hangs from the other end of the string over the pulley as illustrated and the system is in an elevator on earth. (Pulley & string massless, frictionless.) (See PSL 5.2,5) a) If zero acceleration: what is the scale reading in Newtons? Explain. b) Now the elevator and the entire mass and pulley system accelerate together. The reading on the scale is now 9.80 N. Based on this, what do you think is the direction of acceleration? (Gut feeling.) c) Draw FBDs for both the 10 kg and the 8 kg masses (for the accelerating system). d) Use N2L to determine the (i) string tension and (ii) acceleration of the system. Does the direction of the acceleration agree with your answer earlier? Elevator 10 kg scale Since everything accelerates together in the same direction, make this your positive direction for all objects. 8 kg
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Knowledge Booster
First law of motion
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers with Modern …
Physics for Scientists and Engineers with Modern …
Physics
ISBN:
9781337553292
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Inquiry into Physics
Inquiry into Physics
Physics
ISBN:
9781337515863
Author:
Ostdiek
Publisher:
Cengage