Homework Help: Physical Science

Posted by Jason on Sunday, September 11, 2011 at 6:45pm.

A 1000-kg car moving at 80 km/h collides head on with a 100-kg car moving west at 40km/h, and the two cars stick together. Which way does the wreckage move and with what initial speed?

Physical Science - bobpursley, Sunday, September 11, 2011 at 7:18pm
Use conservation of momentum:

1000*80-100*40=1110(V)

solve for V. postive means East.
Physical Science - Anonymous, Monday, November 5, 2012 at 7:47pm
3.6 m/s^2

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