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II. Conservation of Momentum
#22
m1v1 + m2v2 = m1v1′ + m2v2′
Momentum is only conserved Totally Elastic Collision?
-4 kgm/s Total momentum before =
Total momentum = m1v1 + m2v2 Total mom. = (4.0 kg)(3 m/s)+6.0kg(-3.0m/s)
= 12. kgm/s + -18. kgm/s
= -6.0 kgm/s
What's the total momentum before the collision? After the collision?
Answer: -30 kgm/s
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