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# HW3 - Arb Kellen Homework 3 Due 4:00 am Inst Moore This...

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Arb, Kellen – Homework 3 – Due: Jan 30 2004, 4:00 am – Inst: Moore 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page – find all choices before making your selection. The due time is Central time. 001 (part 1 of 2) 10 points Consider the position-time graph for a squir- rel running along a clothesline. 1 2 3 4 5 0 1 2 3 4 - 1 - 2 time (s) position (m) a) What is the squirrel’s displacement at the time t = 3 . 5 s? Answer in units of m. Your answer must be within ± 5%. 002 (part 2 of 2) 10 points b) What is the squirrel’s average velocity dur- ing the time interval between 0.0 s and 3.5 s? Answer in units of m / s. Your answer must be within ± 5%. 003 (part 1 of 1) 10 points Consider three velocity curves between time points t A and t B . t t A t B v v A v B A B 1 2 3 Choose the correct relationship among quantities v 1 , v 2 , v 3 , and v A + v B 2 1. v 1 < v 2 = v A + v B 2 < v 3 2. v 1 > v 2 = v A + v B 2 > v 3 3. v 1 = v 2 = v A + v B 2 = v 3 004 (part 1 of 1) 10 points Runner A is initially 2 .

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