Homework Help: physics

Posted by jessy on Monday, January 30, 2012 at 11:13am.

Two carts with masses of 4.3 kg and 3.0 kg
move toward each other on a frictionless track
with speeds of 5.7 m/s and 4.4 m/s, respectively. The carts stick together after colliding
head-on.
Find their ﬁnal speed.
Answer in units of m/s

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