The coordinate of an object is given as a function of time by x = 7t - 3t2, where x is in meters and t is in seconds. Its average velocity over the interval from t = 0 to t = 2 s is: A -11 m/s B 1 m/s 11 m/s D 5 m/s Over a short interval, starting at time t = 0, the coordinate of an automobile in meters is given y x(t) = 27t - 4.0t3, where t is in seconds. The magnitudes of the initial (at t = 0) velocity and acceleration of the auto respectively are: A 27 m/s; 12 m/s? B 27 m/s; 0 m/s? O m/s; 24 m/s? D 27 m/s; 24 m/s?

The coordinate of an object is given as a function of time by x = 7t - 3t2, where x is in meters and t is in seconds. Its average velocity over the interval from t = 0 to t = 2 s is: A -11 m/s B 1 m/s 11 m/s D 5 m/s Over a short interval, starting at time t = 0, the coordinate of an automobile in meters is given y x(t) = 27t - 4.0t3, where t is in seconds. The magnitudes of the initial (at t = 0) velocity and acceleration of the auto respectively are: A 27 m/s; 12 m/s? B 27 m/s; 0 m/s? O m/s; 24 m/s? D 27 m/s; 24 m/s?

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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