A solid disk of mass m, = 9.1 kg and radius R = 0.18 m is rotating with a constant angular velocity of w = 34 rad/s. A thin rectangular rod with mass m2 = 3.6 kg and length L= 2R = 0.36 m begins at rest above the disk and is dropped on the disk where it begins to spin with the disk.
A solid disk of mass m, = 9.1 kg and radius R = 0.18 m is rotating with a constant angular velocity of w = 34 rad/s. A thin rectangular rod with mass m2 = 3.6 kg and length L= 2R = 0.36 m begins at rest above the disk and is dropped on the disk where it begins to spin with the disk.
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i need help with solving questions 4, 5 and 6. can anyone please help me how to do it?
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Phys 140 - FIC: Mechanics (Spring 2021)
SFU
Unit 17: Prelecture / Checkpoint / Homework /
Problems
Homework: Angular Momentum
Print Assignment View
Deadline:
100% until Wednesday, April 7 at 6:00 AM
Interactive Example
IE Putty Rod
Rod and Disk
? 5
7
Standard Exercise
Rod and Disk
Standard Exercise
Person On Disk
A solid disk of mass m1
= 9.1 kg and radius R = 0.18 m is rotating with a constant angular velocity of w = 34 rad/s. A thin
rectangular rod with mass m2 = 3.6 kg and length L = 2R = 0.36 m begins at rest above the disk and is dropped on the
disk where it begins to spin with the disk.
1) What is the initial angular momentum of the rod and disk system?
5.012
kg-m2/s Submit
Your submissions:
5.012
Computed value: 5.012
Submitted: Sunday, April 4 at 1:02 PM
Feedback: Correct!"
Transcribed Image Text:FlipltPhysics
macmillan learning
Phys 140 - FIC: Mechanics (Spring 2021)
SFU
Unit 17: Prelecture / Checkpoint / Homework /
Problems
Homework: Angular Momentum
Print Assignment View
Deadline:
100% until Wednesday, April 7 at 6:00 AM
Interactive Example
IE Putty Rod
Rod and Disk
? 5
7
Standard Exercise
Rod and Disk
Standard Exercise
Person On Disk
A solid disk of mass m1
= 9.1 kg and radius R = 0.18 m is rotating with a constant angular velocity of w = 34 rad/s. A thin
rectangular rod with mass m2 = 3.6 kg and length L = 2R = 0.36 m begins at rest above the disk and is dropped on the
disk where it begins to spin with the disk.
1) What is the initial angular momentum of the rod and disk system?
5.012
kg-m2/s Submit
Your submissions:
5.012
Computed value: 5.012
Submitted: Sunday, April 4 at 1:02 PM
Feedback: Correct!

Transcribed Image Text:A flipitphysics.com
|27
rad/s
Submit
Your submissions:
27
Computed value: 27
Submitted: Sunday, April 4 at 8:05 PM
Feedback: Correct!
4) What is the final angular momentum of the rod and disk system?
9.67
kg-m2/s Submit
Your submissions:
9.67 ?
Computed value: 9.67
Submitted: Sunday, April 4 at 8:13 PM
Feedback: Feedback will be available after 12:00 PM on Wednesday, April 7
5) What is the final rotational energy of the rod and disk system?
J Submit
6) The rod took t = 6.8 s to accelerate to its final angular speed with the disk. What average torque was exerted on the
rod by the disk?
0.298
N-m
Submit
Your submissions:
0.298 X
Computed value: 0.298
Submitted: Sunday, April 4 at 8:14 PM
Feedback:
(Survey Question)
7) Below is some space to write notes on this problem
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