Numbers 3 and 4 on attached image. 3)The figure shows two disks, ? and ?, cemented together, that arerotating with angular acceleration ?. The radius of the small disk ? is 3/4the radius of the larger disk. Calculate the ratio of the tangential velocityof a point on the rim of disk ? to the tangential velocity of a point on therim of disk ?.4)For the two disks in problem 3, what is the ratio of the linear acceleration of a point on the rimof disk ? to the linear acceleration of a point on the rim of disk ?? Physics 1121Experiment 4Pre LabNameInstructor nameYou must show and explain all work in a neat and organized way to receive credit. Please showeach step for calculations. YOU MUST TURN IN THIS SHEET.1. What is meant by "moment of inertia?" (4 pts)2. Show how to obtain Equation (8) from Equations (5), (6), and (7) in the Laboratory Manual. (6pts)LV3. The figure shows two disks, A and B, cemented together, that arerotating with angular acceleration α. The radius of the small disk B is 3/4the radius of the larger disk. Calculate the ratio of the tangential velocityof a point on the rim of disk A to the tangential velocity of a point on therim of disk B. (5 pts)LV4. For the two disks in problem 3, what is the ratio of the linear acceleration of a point on the rimof disk A to the linear acceleration of a point on the rim of disk B? (5 pts)

3.The ratio of tangential velocities corresponding to A and B is,

Answered: Physics 1121 Experiment 4 Pre Lab Name…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 3PE: Integrated Concepts You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is...

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Numbers 3 and 4 on attached image.

3)The figure shows two disks, ? and ?, cemented together, that are
rotating with angular acceleration ?. The radius of the small disk ? is 3/4
the radius of the larger disk. Calculate the ratio of the tangential velocity
of a point on the rim of disk ? to the tangential velocity of a point on the
rim of disk ?.

4)For the two disks in problem 3, what is the ratio of the linear acceleration of a point on the rim
of disk ? to the linear acceleration of a point on the rim of disk ??

Physics 1121
Experiment 4
Pre Lab
Name
Instructor name
You must show and explain all work in a neat and organized way to receive credit. Please show
each step for calculations. YOU MUST TURN IN THIS SHEET.
1. What is meant by "moment of inertia?" (4 pts)
2. Show how to obtain Equation (8) from Equations (5), (6), and (7) in the Laboratory Manual. (6
pts)
LV
3. The figure shows two disks, A and B, cemented together, that are
rotating with angular acceleration α. The radius of the small disk B is 3/4
the radius of the larger disk. Calculate the ratio of the tangential velocity
of a point on the rim of disk A to the tangential velocity of a point on the
rim of disk B. (5 pts)
LV
4. For the two disks in problem 3, what is the ratio of the linear acceleration of a point on the rim
of disk A to the linear acceleration of a point on the rim of disk B? (5 pts)

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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