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23 Nov 2019

A 1290 kg car and 3760 kg truck undergo a perfectly inelasticcollision. Before the collision, the car was traveling southward at1.80 m/s , and the truck westward at 9.40 m/s.
Find the velocity of the wreckage immediately after thecollision.
Enter the x and y components of the velocity separated by a comma.Assume that the positive x and y axes are directed eastward andnorthward, respectively.

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Jamar Ferry
Jamar FerryLv2
7 May 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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It's also possible to first find the x- and y-components vfx andvfy of the resultant velocity. The magnitude and direction of theresultant velocity can then be found with the Pythagorean theorem,vf = vvfx2 + vfy2, and the inverse tangent function ? = tan-1(vfy/vfx). Setting up this alternate approach is a simple matter ofsubstituting vfx = vf cos ? and vfy = vf sin ? in Equations (1) and(2).

Question If the car and van had identical mass and speed, whatwould the resultant angle have been?

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