5. A solid sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30° incline that is 10.0 m long. a) Find the translational and rotational speeds when it reaches the bottom. b) Find the ratio of the rotational kinetic energy to the translational kinetic energy without using any numbers. What do you notice?

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter13: Rotation Ii: A Conservation Approach
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5. A solid sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping
down a 30° incline that is 10.0 m long. a) Find the translational and rotational speeds when it reaches
the bottom. b) Find the ratio of the rotational kinetic energy to the translational kinetic energy without
using any numbers. What do you notice?
Transcribed Image Text:5. A solid sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30° incline that is 10.0 m long. a) Find the translational and rotational speeds when it reaches the bottom. b) Find the ratio of the rotational kinetic energy to the translational kinetic energy without using any numbers. What do you notice?
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