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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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A 1 200-kg car traveling initially at vCi = 25.0 m/s in an easterly direction crashes into
the back of a 9 000-kg truck moving in the same direction at vTi = 20.0 m/s (Fig. P9.12).
The velocity of the car immediately after the collision is vCf = 18.0 m/s to the east. (a)
What is the velocity of the truck immediately after the collision? (b) What is the
change in mechanical energy of the car–truck system in the collision? (c) Account for
this change in mechanical energy.

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