A horizontal 663 N merry-go-round of radius 0.98 m is started from rest by a constant horizontal force of 69.9 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-goround after 2.91 s. The acceleration of gravity is 9.8 m/s 2 . Assume the merry-go-round is a solid cylinder. Answer in units of J.

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 46P: A playground merry-go-round of radius R = 2.00 m has a moment of inertia I = 250 kg m2 and is...
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A horizontal 663 N merry-go-round of radius 0.98 m is started from rest by a constant horizontal force of 69.9 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-goround after 2.91 s. The acceleration of gravity is 9.8 m/s 2 . Assume the merry-go-round is a solid cylinder. Answer in units of J.

 

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Step 1

SOlution:

Gien that

Fg =  663 N

Fh = 69.9 N

R = 0.98 m

 t = 2.91 a

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