# pp05 - PHYSICS A World View Thursday 27 January READ Ch...

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Unformatted text preview: PHYSICS: A World View Thursday, 27 January READ Ch 3 (pp 34-41); PS 3: 1 PRAC Ch 2: Q 33, 45, 51; E 23; P 29 HW #5 Ch 2: Q 40, 52; E 20, 22 Tu 1 Feb LAB Lab #3 Free Fall Pre = 1-5 Have you signed onto the PHYS 103 WebCT course? 1 2 31% 69% 1. Yes 2. No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 In 1999 the world’s ¼-mile record for top fuel dragsters was 4.48 s from a standing start. The dragster was traveling 326.44 mph at the end of the ¼ mile. What was the dragster’s average acceleration? What was the dragster’s average speed in units of miles per second? What was the dragster’s average speed in miles per hour? In-Class Activity Average acceleration v a t ∆ = ∆ 326.44 mph - 0 4.48 s = 72.9 mph/s = In-Class Activity Average speed x v t ∆ = ∆ 0.25 mile 4.48 s = 0.0558 miles/s = 3600 s 1 h 201 mph = Review a v Are you going up or down? Are you speeding up or slowing down? What will your velocity be in 1 second? Review a v Are you going up or down? Are you speeding up or slowing down? What will your velocity be in 1 second? t=0 Review a v Are you going up or down? Are you speeding up or slowing down? What will your velocity be in 1 second? t=1 Review a v Are you going up or down? Are you speeding up or slowing down? What will your velocity be in 1 second? t=2 Review a v Are you going up or down? Are you speeding up or slowing down? What will your velocity be in 1 second?...
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pp05 - PHYSICS A World View Thursday 27 January READ Ch...

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