What's the speed of 2 cars after the collision?

Physics
Tutor: None Selected Time limit: 1 Day

A 850 kg car traveling at 24-m/s north collides with a 1280-kg truck travelling at 18-m/s west. The cars stick together upon impact. What's the resulting speed of the 2 vehicles after the collision?

Oct 19th, 2014

Answer: (850*24+1280*18)/(850+1280)=43440/2130=20.39=20.4 m/s

Oct 20th, 2014

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Oct 19th, 2014
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