Quiz%208%20%28Ch8%29 - 22.9rev 2 rad = +--= = = = = 2) A...

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Student name________________________________________ Student NID__________________________________________ PHY 2053C-0001 Quiz, Mar. 30, 2011 1) The drill bit has a constant angular acceleration of α = 3.50 rad/s 2 . The initial angular speed of the bit is ϖ 0 = 4.00 rad/s. After 8.00 s: a) What is the bit’s angular speed? b) How many revolutions has the bit made? a) ( 29 0 2 rad rad rad t 4 3.5 8s 32 s s s ϖ α = + = + = b) 2 2 0 2 2 2 2 2 2 0 2 2 rad rad 1024 16 s s 144rad rad 2 7 s 1rev 144rad 144rad
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Unformatted text preview: 22.9rev 2 rad = +--= = = = = 2) A motorcycle accelerates uniformly from rest and reaches a linear speed of 15.0 m/s in 5.0 s. The radius of each tire is 0.28 m. What is the magnitude of angular acceleration of each tire? ( 29 ( 29 lin tan lin lin 2 v v r v r m 15 v rad s 10.7 t rt 0.28m 5s s = = =-= = = =...
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This note was uploaded on 09/21/2011 for the course PHY 2053 taught by Professor Vellaris during the Spring '08 term at University of Central Florida.

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