Part b. A thin hoop of mass 22 kg and radius 1.5 m rolls down an...

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Physics

Part b.
A thin hoop of mass 22 kg and radius 1.5 m rolls down an inclinethat is 4 meters tall. What is the velocity of the thin hoop at thebottom of the incline?

m/s

Part c.
A solid disk of mass 22 kg and radius 1.5 m rolls down an inclinethat is 4 meters tall. What is the velocity of the solid disk atthe bottom of the incline?

m/s
5.
[â€“/1 Points]DETAILSMY NOTES
A 10.3 kg tire that has a moment of inertia of 2340 kgm^2 isinitially turning at 20.5 revolutions/s. It coasts to rest after131 revolutions. What is the magnitude of the torque that slowedit?

N-m
6.
[â€“/1 Points]DETAILSMY NOTES
With her arms held against her body, a figure skater has amoment of inertia of 0.65 kg-m^2. With her arms extended, herrotational speed is 0.21 rev/s. But when she draws in her arms, herrotational speed is 0.74 rev/s. What is her moment of inertia whenher arms are extended?

kg-m^2

Answer & Explanation Solved by verified expert

4.4 Ratings (794 Votes)

b Mass of the hoop m 22 kg and its radius R 15mInitial height of the hoop h 4 mHence initial total energy P Potential energy at a height h mghwhere g 98 m s2 is the acceleration due togravityIf the angular velocity of the hoop at the See Answer

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