February 22, 2017

Homework Help: college physics

Posted by eric on Tuesday, March 23, 2010 at 12:33am.

A(n) 13,300 lb railroad car traveling at 7.4 ft/s couples with a stationary car of 6790 lb. The acceleration of gravity is 32 ft/s^2. What is their velocity after the collision (ft/s)?

And what impulse did the first car receive? Answer in units of lbs.

Any help would be grateful, THANKS

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