Session_15_Powerpoint

# Session_15_Powerpoint - pass over a grid of equally spaced...

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PHYS 1100 – SI Session 15 Leader – Mel Triay

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Group Activity A Many of the solutions to problems in this class are hinted by certain ‘buzz’ words or phrases. In a group (3 or more), come up with a list of these ‘buzz’ words and phrases.
Group Activity B Which types of problems are giving you the most trouble in this class so far?

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Kinematics Vectors vs. scalars Displacement vs. distance travelled Velocity vs. speed Average vs. Instantaneous
Average quantities - Vector

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Example 1

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Practice Set 1
Practice Set 1 b. When the legal speed limit for the New York Thruway was increased from 55 mi/h to 65 mi/h, how much time was saved by a motorist who drove the 700 km between the Buffalo entrance and the New York City exit at the legal speed limit?

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Conceptual The figure below shows four paths along which objects move from a starting point to a final point, all in the same time interval. The paths

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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 youd 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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## This note was uploaded on 03/29/2012 for the course PHYSICS 1100 taught by Professor Giammanco during the Spring '08 term at LSU.

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Session_15_Powerpoint - pass over a grid of equally spaced...

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