17–69. The 20-kg roll of paper has a radius of gyrationkA = 90 mm about an axis passing through point A. It is pinsupported at both ends by two brackets AB. If the roll restsagainst a wall for which the coefficient of kinetic friction isH = 0.2 and a vertical force F= 30 N is applied to the end ofthe paper, determine the angular acceleration of the roll asthe paper unrolls.300 mm125 mm

Given, mass of the paper roll, m=20kg Radius of gyration, kA=90mm Coefficient of Kinetic Friction…

Answered: 17–69. The 20-kg roll of paper has a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The 24-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 = 0.2 and a vertical force F = 27 Nis applied to the end of the paper. (Figure 1) Figure 300 mm 125 mm 1 of 1 ▼ Part A Determine the angular acceleration of the roll as the paper unrolls. Express your answer using three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. IVE ΑΣΦΑ ↓↑ vec α = Submit Provide Feedback Request Answer ? rad/s² Next >
The wheel is attached to the spring. The mass of the wheel is m=20 kg. The radius of the wheel is 0.6m. The radius of gyration KG=0.4 m. The spring's unstretched length is Lo=1.0 m. The stiffness coefficient of the spring is k=2.0 N/m. The wheel is released from rest at the state 1 when the angle between the spring and the vertical direction is 8-30°. The wheel rolls without slipping and passes the position at the state 2 when the angle is 8=0°. The spring's length at the state 2 is L2=4 m. (11) The angular velocity at the state 2?_ _(rad/s) (two decimal places) 111441 L₂ State 2 State 1
The wheel is attached to the spring. The mass of the wheel is m=20 kg. The radius of the wheel is 0.6m. The radius of gyration KG=0.4 m. The spring's unstretched length is Lo=1.0 m. The stiffness coefficient of the spring is k=2.0 N/m. The wheel is released from rest at the state 1 when the angle between the spring and the vertical direction is 8-30°. The wheel rolls without slipping and passes the position at the state 2 when the angle is 8-0°. The spring's length at the state 2 is L2=4 m. (5) The stretched spring length of the spring at the state 2 is_ places) HULK ܪܐ TG नेता State 2 State 1 _(m) (two decimal
The 29-kg spool of outer radius ro=530 mm has a centroidal radius of gyration k=355 mm and a central shaft of radius ri=215 mm. The spool is at rest on the incline when a tension T=204 N is applied to the end of a cable which is wrapped securely around the central shaft as shown. Determine the acceleration aaa of the spool center GGG and the friction force FFF acting at the interface of the spool and incline. The friction coefficients there are μs=0.28 and μk=0.17. The tension T is applied parallel to the incline and the angle θ=16. The acceleration aaa and the force F are both positive if up the incline, negative if down.
SOLVE USING PRINCIPLE OF WORK AND ENERGY
The 45-kg reel has a radius of gyration about its center O of ko = 220 mm. If it is released from rest, determine the total external work done to it when its center O has traveled 6.6 m down the smooth inclined plane (with angle = 35°). Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point, and proper SI unit. Take g = 9.81 m/s². 0.4 m 0.2 m²
The uniform 80 kg slender rod is at rest in the position shown when P = 450 N is applied. Determine the value of angular velocity, w2 the rod if L1 = 5.5 m and L2 = 6.5 m. A L L2 L1 B
The spool has a mass of 150 kg and a radius of gyration of KG = = 0.3 m. (Figure 1) Figure 250 mm G A 400 mm P Part A If the coefficients of static and kinetic friction at A are μ = 0.2 and μk 0.15, respectively, determine the angular acceleration of the spool if P = 60 N. Solve this problem if the cord and force P are directed vertically upwards. Express your answer to three significant figures and include the appropriate units. απ P Submit μA Value Provide Feedback Request Answer Ć Units 11? - Next >
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