A 1,105-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,900-kg trucl moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east. +25.0 m/s +20.0 m/s +18.0 m/s Before After (a) What is the velocity of the truck right after the collision? (Round your answer to at least three decimal places.) 20.64 m/s (east) (b) How much mechanical energy is lost in the collision? 39045 X J

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter6: Momentum, Impulse, And Collisions
Section: Chapter Questions
Problem 44P: A 1200-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the...
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A 1,105-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,900-kg trucl
moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the
east.
+25.0 m/s
+20.0 m/s
+18.0 m/s
Before
After
(a) What is the velocity of the truck right after the collision? (Round your answer to at least three decimal places.)
20.64
m/s (east)
(b) How much mechanical energy is lost in the collision?
39045
X J
Transcribed Image Text:A 1,105-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,900-kg trucl moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east. +25.0 m/s +20.0 m/s +18.0 m/s Before After (a) What is the velocity of the truck right after the collision? (Round your answer to at least three decimal places.) 20.64 m/s (east) (b) How much mechanical energy is lost in the collision? 39045 X J
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