The 25-kg roll of paper has a radius of gyration kA - 90 mm about an axis passing through point A. It is pin supported at both ends by two brackets AB. The roll rests against a wall for which the coefficient of kinetic friction is - 0.3. Neglect the mass of paper that is removed. (Elguce 1) • Part A Determine the magnitude of the constant vertical force F that must be applied to the roll to pull off 1 m of paper in t = 3s starting from rest Express your answer to three significant figures and include the appropriate units. Figure 1 of 1 Value Units Submit Previous Answers Resuest Answer 300 X Incorrect; Try Again; 5 attempts remaining 15 Provide Feedback Next >

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.80P
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The 25-kg roll of paper has a radius of gyration
kA = 90 mm about an axis passing through point A. It is
pin supported at both ends by two brackets AB. The roll
rests against a wall for which the coefficient of kinetic
friction is pe = 0.3. Neglect the mass of paper that is
removed. (Eigure 1)
Part A
Determine the magnitude of the constant vertical force F that must be applied to the roll to pull off 1 m
of paper in t = 3 s starting from rest
Express your answer to three significant figures and include the appropriate units.
Figure
< 1 of 1
Value
Units
Submit
Previous Answers Resuest Answer
300
x Incorrect, Try Again; 5 attempts remaining
125
Provide Feedback
Next >
Transcribed Image Text:Review The 25-kg roll of paper has a radius of gyration kA = 90 mm about an axis passing through point A. It is pin supported at both ends by two brackets AB. The roll rests against a wall for which the coefficient of kinetic friction is pe = 0.3. Neglect the mass of paper that is removed. (Eigure 1) Part A Determine the magnitude of the constant vertical force F that must be applied to the roll to pull off 1 m of paper in t = 3 s starting from rest Express your answer to three significant figures and include the appropriate units. Figure < 1 of 1 Value Units Submit Previous Answers Resuest Answer 300 x Incorrect, Try Again; 5 attempts remaining 125 Provide Feedback Next >
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