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*A uniform disk is mounted horizontally on a spindle so that it can rotate freely. The disk is initially at rest. A top view is shown. There are two exhaust ports which provide thrust when the engines are engaged. One is mounted 2m above the axel and the exhaust gases escape towards the right side of the page. The other is mounted 1 meter to the right of the axel and the exhaust gases escape towards the top of the page. Each exhaust port provides 20N of thrust. R;=1m R=3m What is the magnitude of the angular momentum of the disk after the engines have engaged for 5 seconds? 20 kg m²/s 200 kg m²/s O 100 kg m2/s O 30 kg m²/s R2=2m

*A uniform disk is mounted horizontally on a spindle so that it can rotate freely. The disk is initially at rest. A top view is shown. There are two exhaust ports which provide thrust when the engines are engaged. One is mounted 2m above the axel and the exhaust gases escape towards the right side of the page. The other is mounted 1 meter to the right of the axel and the exhaust gases escape towards the top of the page. Each exhaust port provides 20N of thrust. R;=1m R=3m What is the magnitude of the angular momentum of the disk after the engines have engaged for 5 seconds? 20 kg m²/s 200 kg m²/s O 100 kg m2/s O 30 kg m²/s R2=2m

Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 62PQ: Problems 62 and 63 are paired. 62. C A disk is rotating around a fixed axis that passes through its...
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Rotational Inertia for Common Shapes Rod about Solid cylinder or disc, symmetry axis Hoop about symmetry axis Solid center I=-MR² sphere I=-MR² I = MR² - ML² Hoop about diameter Thin spherical shell Rod about end *A uniform disk is mounted horizontally on a spindle so that it can rotate freely. The disk is initially at rest. A top view is shown. There are two exhaust ports which provide thrust when the engines are engaged. One is mounted 2m above the axel and the exhaust gases escape towards the right side of the page. The other is mounted 1 meter to the right of the axel and the exhaust gases escape towards the top of the page. Each exhaust port provides 20N of thrust. R3=1m R=3m What is the magnitude of the angular momentum of the disk after the engines have engaged for 5 seconds? 20 kg m²/s 200 kg m2/s 100 kg m²/s O 30 kg m2/s 300 kg m2/s O 10 kg m²/s R2=2m
Transcribed Image Text:Rotational Inertia for Common Shapes Rod about Solid cylinder or disc, symmetry axis Hoop about symmetry axis Solid center I=-MR² sphere I=-MR² I = MR² - ML² Hoop about diameter Thin spherical shell Rod about end *A uniform disk is mounted horizontally on a spindle so that it can rotate freely. The disk is initially at rest. A top view is shown. There are two exhaust ports which provide thrust when the engines are engaged. One is mounted 2m above the axel and the exhaust gases escape towards the right side of the page. The other is mounted 1 meter to the right of the axel and the exhaust gases escape towards the top of the page. Each exhaust port provides 20N of thrust. R3=1m R=3m What is the magnitude of the angular momentum of the disk after the engines have engaged for 5 seconds? 20 kg m²/s 200 kg m2/s 100 kg m²/s O 30 kg m2/s 300 kg m2/s O 10 kg m²/s R2=2m
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