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View History Bookmarks Window Help > m ? 76% I Sun Apr 15 10:55 PM Q · Safari File ... Edit D saplinglearning.com ANTHRO 152 - Google Docs University of California, Merced - PHYS 18 - Spring 18 - LIU: HW: Tor... Physics question | Chegg.com na Sapling Learning macmillan learning Jump to.. O Ruben Chavez O Attempts Gradebook Assignment Information Score w # 4/15/2018 11:59 PM 42.9/1004/15/2018 09:06 PM Print Calculator Periodic Table Question 13 of 21 1 100 ea Sapling Learning Map. A 100 - Available From: Not Set Due Date: 4/15/2018 11:59 PM Points Possible: 100 Grade Category: Graded Description: Policies: Homework A uniform disk of radius 0.503 m and unknown mass is constrained to rotate about a perpendicular axis through its center. A ring with same mass as the disk s is attached around the disk's rim. A tangential force of 0.239 N applied at the rim causes an angular acceleration of 0.111 rad/s². Find the mass of the disk. 2 . Number . | . | | You can check your answers. You can view solutions when you com give up on any question. You can keep trying to answer each qu until you get it right or give up. You lose 5% of the points available to answer in your question for each incom attempt at that answer. . eTextbook . Help With This Topic . oWeb Help & Videos . O Technical Support and Bug Rep ? Hint Previous Give Up & View Solution Check Answer Next Exit 2100 11-2018 Sapling Learning, Inc. about us careers privacy policy terms of use contact us help

Explanation / Answer

let,

radius, r=0.503 m

force, F=0.239 N

alpa=0.111 rad/sec^2

mass of the rim and disk is m,

net moment of inertia,

I_net=

I_net=

I_net=3/2*m*r^2

but

Tourque=I_net*alpa

F*r=I_net*alpa

F*r=(I_disk+ I_ring)*alpa

F*r=(1/2*M*R^2 + m*r^2)*alpa

F*r=(3/2*m*r^2)*alpa

0.239*0.503=3/2*m*0.503^2*0.111

===> m=2.854 kg

mass of the disk or rim, m=2.854 kg

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