y Bookmarks Window Help sapling learning.com PHYS 1321 Spring17 HALL: Hw: Rotati

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y Bookmarks Window Help sapling learning.com PHYS 1321 Spring17 HALL: Hw: Rotational Motion Bookmarks win Hep A earn og com 4/24/2017 o6:00 PM Q57.5/100 G 4/17/2017 o3:48 PM Grade t Print LCalculator Periodic Table Question 3 of 12 Sapling Learning A 131-kg is a uniform disk of radius 1.53 m and can rotate about the vertical axis center, A 69.7-kg person stands on the platform at a distance of 1.07 m from the center and a 25,5 kg dog sits on the platform near the person, 1.39 m from the center. Find the moment of inertia of this system, consisting of the platform and its population, with respect to the axis. careers partners vacy policy terms a contact us MacBook Pro

Explanation / Answer

we use

For the disk:
I = (1/2)MR^2

and

For the dog:
I=MR^2

I = ½*131*1.53² + 64.7*1.07² + 25.51*1.39²

I = 276.69kgm²

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