PHY
HW 20

# HW 20 - Morby Grant Homework 20 Due noon Inst Drummond This...

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Morby, Grant – Homework 20 – Due: Mar 22 2006, noon – Inst: Drummond 1 This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (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 twice the tangential speed as the larger wheel. 2. The smaller wheel has half the rotational speed and half 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 twice the rotational speed and the same tangential speed as the larger wheel.

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