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Unformatted text preview: pass over a grid of equally spaced straight lines. Rank the paths according to (a) the average velocity of the objects and (b) the average speed of the objects, greatest first. Instantaneous Kinematics • Calculus – Did you really think you’d never have to use it? Position Velocity Acceleration Position Velocity Acceleration Key Phrases and Concepts • Speeding up / Slowing down • Max. / min. velocity and displacement • ‘Turnaround’ points Example 2 A particle's position is given by x = 4  12 t + 3 t 2 (where t is in seconds and x is in meters). a. What is its velocity at t = 1 s? b. Is it moving in the positive or negative direction of x just then? c. What is its speed just then? d. Is it speeding up or slowing down just Answer to Example 2 Practice Set 2 Answers to Practice Set 2...
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 Spring '08
 GIAMMANCO
 Physics, Power, Velocity, 65 mi, 55 mi, Mel Triay, York Thruway

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