44. A 1200-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 9 000-kg truck moving in the same direction at 20.0 m/s (Fig. P6.44). The velocity of the car right after the collision is 18.0 m/s to the east. (a) What is the velocity of the truck right after the collision? (b) How much mechanical energy is lost in the colli- sion? Account for this loss in energy. +25.0 m/s +20.0 m/s Before +18.0 m/s After

44. A 1200-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 9 000-kg truck moving in the same direction at 20.0 m/s (Fig. P6.44). The velocity of the car right after the collision is 18.0 m/s to the east. (a) What is the velocity of the truck right after the collision? (b) How much mechanical energy is lost in the colli- sion? Account for this loss in energy. +25.0 m/s +20.0 m/s Before +18.0 m/s After

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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Question

Collisions in one dimension

44. A 1200-kg car traveling initially with a speed of 25.0 m/s in
an easterly direction crashes into the rear end of a 9 000-kg
truck moving in the same direction at 20.0 m/s (Fig. P6.44).
The velocity of the car right after the collision is 18.0 m/s to
the east. (a) What is the velocity of the truck right after the
collision? (b) How much mechanical energy is lost in the colli-
sion? Account for this loss in energy.
+25.0 m/s +20.0 m/s
Before
+18.0 m/s
Figure P6.44
After

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