A 1.1kg bike wheel, is spinning 190rpm clockwise when a student applies a Frictional force as shown. The moment of inertia of any ring (such as the bike tire, 10cm neglecting the spokes) is I = mr². Answer all questions realtive to the center of the wheel. What is the initial angular speed (in selectable units)? 19.9 rad/s v How much torque does the friction cause? 115 Nm v Nhat is the moment of inertia? kg m² v What is the angular acceleration? rad/s2 v How long will the wheel take to stop spinning? How far will the wheel rotate before stopping? 2.3N rad revolutions

A 1.1kg bike wheel, is spinning 190rpm clockwise when a student applies a Frictional force as shown. The moment of inertia of any ring (such as the bike tire, 10cm neglecting the spokes) is I = mr². Answer all questions realtive to the center of the wheel. What is the initial angular speed (in selectable units)? 19.9 rad/s v How much torque does the friction cause? 115 Nm v Nhat is the moment of inertia? kg m² v What is the angular acceleration? rad/s2 v How long will the wheel take to stop spinning? How far will the wheel rotate before stopping? 2.3N rad revolutions

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section9.1: Impulse And Momentum

Problem 9PP

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Question

Refer to the picture below.

A 1.1kg bike wheel, is spinning 190rpm clockwise when a student applies a
frictional force as shown. The moment of inertia of any ring (such as the bike tire,
10cm
neglecting the spokes) is I = mr2.
Answer all questions realtive to the center of the wheel.
What is the initial angular speed (in selectable units)?
19.9
rad/s v
How much torque does the friction cause?
115
Nm v
What is the moment of inertia?
kg m2
What is the angular acceleration?
rad/s2 v
How long will the wheel take to stop spinning?
How far will the wheel rotate before stopping?
2.3N
rad
revolutions

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