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Unformatted text preview: homework 16 – RAHMAN, TARIQUE – Due: Mar 31 2008, 3:00 am 1 Question 1, chap 12, sect 2. part 1 of 1 10 points A ladybug sits at the outer edge of a merry goround, and a gentleman bug sits halfway between her and the axis of rotation. The merrygoround makes a complete revolution once each second. The gentleman bug’s angu lar speed is 1. the same as the ladybug’s. correct 2. impossible to determine. 3. twice the ladybug’s. 4. half the ladybug’s. Explanation: Both insects have an angular speed of 1 rev/s. Question 2, chap 12, sect 2. part 1 of 1 10 points A large wheel is coupled to a wheel with half the diameter as shown. r 2 r How does the rotational speed of the smaller wheel compare with that of the larger wheel? How do the tangential speeds at the rims compare (assuming the belt doesn’t slip)? 1. The smaller wheel has twice the rotational speed and the same tangential speed as the larger wheel. correct 2. The smaller wheel has twice the rotational speed and twice the tangential speed as the larger wheel. 3. The smaller wheel has four times the ro tational speed and the same tangential speed as the larger wheel. 4. The smaller wheel has half the rotational speed and half the tangential speed as the larger wheel....
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This note was uploaded on 02/03/2010 for the course PHY 303K taught by Professor Turner during the Fall '08 term at University of Texas at Austin.
 Fall '08
 Turner
 Physics, Work

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