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Course: Pixar in a Box > Unit 7

Lesson 2: The physics of particle systems
Computing
Pixar in a Box
Effects
The physics of particle systems
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Particle collisions

Google Classroom

Problem

Two particles are travelling horizontally towards each other. Particle A has a velocity of 5 units in the x direction. Particle B has a velocity of −3 units in the x direction.
Assuming the mass of the particles is the same and the collision is completely elastic, after the particles have collided,
What is the velocity of particle A in the x-direction?
  • 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
units.
What is the velocity of particle B in the x-direction?
  • 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
units.