A uniform disk of radius 0.12 m and mass 5 kg is pivoted such that it rotates

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A uniform disk of radius 0.12 m and mass 5 kg is pivoted such that it rotates freely about its central axis (Figure). A string wrapped around the disk is pulled with a force of 20 N.

(a) What is the torque exerted on the disk?

(b) What is the angular acceleration of the disk?

(d) What is its kinetic energy after 5 s?

(e) What is the total angle θ that the disk turns through in 5 s?

(f) Show that the work done by the torque τΔθ equals the kinetic energy.

5 kg R 20 N

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

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Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Jun 29, 2011 10:18 AM

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A uniform disk of radius 0.12 m and mass 5 kg is pivoted such that it rotates

Question:

5 kg R 20 N

Step by Step Answer:

a FR 20 012 Nm 24 Nm b I I 12 MR 2 2 MR 2 667 r...View the full answer

Fundamentals of Ethics for Scientists and Engineers

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