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High school physics - NGSS

Course: High school physics - NGSS > Unit 1

Lesson 3: Conservation of momentum
Science
High school physics - NGSS
Forces and motion
Conservation of momentum
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Understand: conservation of momentum

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Problem

Two bumper cars are driven toward each other. The initial momentum of bumper car 1 is 250, point, 0, start text, k, g, end text, dot, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction and the initial momentum of bumper car 2 is minus, 320, point, 0, start text, k, g, end text, dot, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction. After the cars collide, the final momentum of bumper car 1 is minus, 311, start text, k, g, end text, dot, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction.
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, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
start text, k, g, end text, dot, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
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