A student holds a spinning bicycle wheel while sitting motionless on a stool that is free to rotate about a vertical axis through its center. The wheel spins with an angular speed of 19.1 rad/s and its initial angular momentum is directed up. The wheel’s moment of inertia is 0.160 kg·m² and the moment of inertia for the student plus stool is 2.50 kg·m².**Diagram:**The diagram shows a student sitting on a rotating stool while holding a bicycle wheel. In the first image (labeled "a"), the wheel's angular momentum (\( L_{\text{wheel}} \)) is directed upward. In the second image (labeled "b"), the student has flipped the wheel, and the wheel's angular momentum (\( L_{\text{wheel}} \)) is directed downward.**Questions:**(a) Find the student’s final angular speed (in rad/s) after he turns the wheel over so that it spins at the same speed but with its angular momentum directed down.[Input Box] rad/s(b) Will the student’s final angular momentum be directed up or down?- [ ] up- [ ] down

Given Data:The angular speed of wheel is The moment of inertia of wheel is The moment of inertia of…

A student holds a spinning bicycle wheel while sitting motionless on a stool that is free to rotate about a vertical axis through its center (see the figure below). The wheel spins with an angular speed of 19.1 rad/s and its initial angular momentum is directed up. The wheel's moment of inertia is 0.160 kg m² and the moment of inertia for the student plus stool is 2.50 kg. m². HINT Lwheel Lwheel (a) Find the student's final angular speed (in rad/s) after he turns the wheel over so that it spins at the same speed but with its angular momentum directed down. rad/s (b) Will the student's final angular momentum be directed up or down? up down

A student holds a spinning bicycle wheel while sitting motionless on a stool that is free to rotate about a vertical axis through its center (see the figure below). The wheel spins with an angular speed of 19.1 rad/s and its initial angular momentum is directed up. The wheel's moment of inertia is 0.160 kg m² and the moment of inertia for the student plus stool is 2.50 kg. m². HINT Lwheel Lwheel (a) Find the student's final angular speed (in rad/s) after he turns the wheel over so that it spins at the same speed but with its angular momentum directed down. rad/s (b) Will the student's final angular momentum be directed up or down? up down

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

A student holds a spinning bicycle wheel while sitting motionless on a stool that is free to rotate about a vertical axis through its center. The wheel spins with an angular speed of 19.1 rad/s and its initial angular momentum is directed up. The wheel’s moment of inertia is 0.160 kg·m² and the moment of inertia for the student plus stool is 2.50 kg·m².

**Diagram:**
The diagram shows a student sitting on a rotating stool while holding a bicycle wheel. In the first image (labeled "a"), the wheel's angular momentum (\( L_{\text{wheel}} \)) is directed upward. In the second image (labeled "b"), the student has flipped the wheel, and the wheel's angular momentum (\( L_{\text{wheel}} \)) is directed downward.

**Questions:**

(a) Find the student’s final angular speed (in rad/s) after he turns the wheel over so that it spins at the same speed but with its angular momentum directed down.

[Input Box] rad/s

(b) Will the student’s final angular momentum be directed up or down?

- [ ] up
- [ ] down

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