problem_pdf - What is the squirrels average velocity during...

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tkach (at25258) – Q01 – barclay – (92502) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. Note Q4 answer should be in hours Q5 answer should be in kilometers 001 10.0 points The Earth’s radius is about 6380 km. The space shuttle is orbiting about 311.7 km above Earth’s surFace. IF the average speed oF the space shuttle is 26100 km / h, fnd the time required For it to circle Earth. Answer in units oF h. 002 10.0 points The Olympic record For the marathon is 2 h, 9 min, 21 s. IF the average speed oF a runner achieving this record is 5.436 m/s, what is the marathon distance? Answer in units oF km. 003 (part 1 of 2) 10.0 points Consider the position-time graph For a squir- rel running along a clothesline. b b b b b b 1 2 3 4 5 0 1 2 3 4 - 1 - 2 time (s) position (m) What is the squirrel’s displacement at 2 . 5 s? Answer in units oF m. Your answer must be within ± 5.0% 004 (part 2 of 2) 10.0 points
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Unformatted text preview: What is the squirrels average velocity during the time interval between 0.0 s and 2.5 s? Answer in units oF m / s. Your answer must be within 5.0% 005 10.0 points A vehicle moves in a straight line with an acceleration oF 4 km / h 2 . By how much does the speed change each second? Answer in units oF km / h. 006 10.0 points The slope at any point oF a distance-time graph represents 1. instantaneous acceleration. 2. average acceleration. 3. displacement. 4. average Force. 5. instantaneous velocity. 007 10.0 points A car travels in a straight line For 3 h at a constant speed oF 91 km / h . What is its acceleration? Answer in units oF m / s 2 . 008 10.0 points A car traveling in a straight line has a velocity oF 5 . 49 m / s at some instant. AFter 5 . 25 s, its velocity is 9 . 56 m / s. What is its average acceleration in this time interval? Answer in units oF m / s 2 ....
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