A truck of mass 1.5x10^4 kg travelling at 85 km/h [S] collides with a car of mass 1.2x10^3 kg travelling at 30 km/h [S]. The collision is perfectly inelastic. a) Calculate the magnitude and direction of the velocity of the vehicles immediately after the collision. b) Determine the decrease in kinetic energy during the collision

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter8: Momentum And Collisions
Section: Chapter Questions
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 A truck of mass 1.5x10^4 kg travelling at 85 km/h [S] collides with a car of mass 1.2x10^3 kg travelling at 30 km/h [S]. The collision is perfectly inelastic.

a) Calculate the magnitude and direction of the velocity of the vehicles immediately after the collision.

b) Determine the decrease in kinetic energy during the collision

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