You and a friend are testing bike gears as a part of your physics class! You measure that the bike chain applies a force of 9.00 N at the outer radius of the gears in the clockwise (or ) direction. Your friend applies a force of 20.0 N to the end of the pedal a distance 18.9 cm away from the axis of rotation in the counter-clockwise (or +) direction. This gets a little tricky when trying to calculate the Moment of Inertia. You decide to model the gears as an Annular Disk with an inner radius of 4.50 cm and an outer radius of 9.90 cm. You can assume that the pedal and the spokes in the gears are massless and that the only mass is in the gears themselves, which has a mass of 6.50 kg.

You and a friend are testing bike gears as a part of your physics class! You measure that the bike chain applies a force of 9.00 N at the outer radius of the gears in the clockwise (or ) direction. Your friend applies a force of 20.0 N to the end of the pedal a distance 18.9 cm away from the axis of rotation in the counter-clockwise (or +) direction. This gets a little tricky when trying to calculate the Moment of Inertia. You decide to model the gears as an Annular Disk with an inner radius of 4.50 cm and an outer radius of 9.90 cm. You can assume that the pedal and the spokes in the gears are massless and that the only mass is in the gears themselves, which has a mass of 6.50 kg.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.2: Rotational Dynamics

Problem 28PP

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