Posted by nick on Thursday, May 19, 2011 at 1:33pm.
a 10000 kg truck moving at 10 m/s collides with a 2000 kg car moving at 30 m/s in the opposite direction. If they stick together after impact how fast, and in what direction, will they be moving?

science  Lin, Wednesday, January 29, 2014 at 5:51pm
13.333333
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