You are driving along Lawrence Ave. at 60 km/h. You see the traffic light ahead is still green and decide to speed up to try to make it through the intersection before it turns red (poor decision!). Your car accelerates at 1.3 m/s. You reach the light after accelerating for 4.3 seconds. What is your speed at the light in m/s? V =v, +aAt A: Pictorial Representation Sketch showing events, describe events, coordinate system, label givens & unknowns with symbols, conversions

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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You are driving along Lawrence Ave. at 60 km/h. You see the traffic light ahead is still green and decide
to speed up to try to make it through the intersection before it turns red (poor decision!). Your car
accelerates at 1.3 m/s. You reach the light after accelerating for 4.3 seconds. What is your speed at
the light in m/s?
V =v, +aAt
A: Pictorial Representation
Sketch showing events, describe events, coordinate system, label givens & unknowns with symbols, conversions
B: Physics Representation
Motion diagram, motion graphs, velocity vectors, events
a
C: Word Representation
Describe motion (no numbers),-assumptions, estimated result (no calculation)
D: Mathematical Representation
Describe physics of steps, complete equations, algebraically isolate, substitutions with units, final statement of prediction
E: Evaluation
Answer has reasonable size, direction and units? Why?
Transcribed Image Text:You are driving along Lawrence Ave. at 60 km/h. You see the traffic light ahead is still green and decide to speed up to try to make it through the intersection before it turns red (poor decision!). Your car accelerates at 1.3 m/s. You reach the light after accelerating for 4.3 seconds. What is your speed at the light in m/s? V =v, +aAt A: Pictorial Representation Sketch showing events, describe events, coordinate system, label givens & unknowns with symbols, conversions B: Physics Representation Motion diagram, motion graphs, velocity vectors, events a C: Word Representation Describe motion (no numbers),-assumptions, estimated result (no calculation) D: Mathematical Representation Describe physics of steps, complete equations, algebraically isolate, substitutions with units, final statement of prediction E: Evaluation Answer has reasonable size, direction and units? Why?
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