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The 20.2-kg roll of paper has a radius of gyration k₁ = 120 mm about an axis passing through point A. It is pin supported at both ends by two brackets AB as shown in (Figure 1). The roll rests on the floor, for which the coefficient of kinetic friction is μ = 0.2. A horizontal force F = 60 N is applied to the end of the paper. Figure Part A B 400 mm 300 mm 1 of 1 Determine the initial angular acceleration of the roll as the paper unrolls. Express your answer in radians per second squared to three significant figures. Assume the positive direction is clockwise.

The 20.2-kg roll of paper has a radius of gyration k₁ = 120 mm about an axis passing through point A. It is pin supported at both ends by two brackets AB as shown in (Figure 1). The roll rests on the floor, for which the coefficient of kinetic friction is μ = 0.2. A horizontal force F = 60 N is applied to the end of the paper. Figure Part A B 400 mm 300 mm 1 of 1 Determine the initial angular acceleration of the roll as the paper unrolls. Express your answer in radians per second squared to three significant figures. Assume the positive direction is clockwise.

International Edition---engineering Mechanics: Statics, 4th Edition
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 7.49P
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The 20.2-kg roll of paper has a radius of gyration k₁ = 120 mm about an axis passing through point A. It is pin supported at both ends by two brackets AB as shown in (Figure 1). The roll rests on the floor, for which the coefficient of kinetic friction is μ = 0.2. A horizontal force F = 60 N is applied to the end of the paper. Figure Part A B 400 mm 300 mm 1 of 1 Determine the initial angular acceleration of the roll as the paper unrolls. Express your answer in radians per second squared to three significant figures. Assume the positive direction is clockwise.
Transcribed Image Text:The 20.2-kg roll of paper has a radius of gyration k₁ = 120 mm about an axis passing through point A. It is pin supported at both ends by two brackets AB as shown in (Figure 1). The roll rests on the floor, for which the coefficient of kinetic friction is μ = 0.2. A horizontal force F = 60 N is applied to the end of the paper. Figure Part A B 400 mm 300 mm 1 of 1 Determine the initial angular acceleration of the roll as the paper unrolls. Express your answer in radians per second squared to three significant figures. Assume the positive direction is clockwise.
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