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Understand: conservation of momentum

You might need: Calculator

Problem

Two bumper cars are driven toward each other. The initial momentum of bumper car 1 is 250.0kgms and the initial momentum of bumper car 2 is 320.0kgms. After the cars collide, the final momentum of bumper car 1 is 311kgms.
What is the magnitude of the final momentum of bumper car 2?
Your answer should have three significant figures.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
kgms
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