Free AP Physics C lesson

Relative Velocity

This AP Physics C: Mechanics lesson is designed for AP Physics C self-study. It includes 1 video lesson, 2 practice questions, and an estimated completion time of 12 minutes.

Video lessons

  1. Relative Velocity

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Practice covered

  1. If the velocity of object A relative to object B is vecv_AB = 15 m/s eastward, what is the velocity of object B relative to object A?
  2. A boat travels at 3.0 m/s northward relative to the water. The water flows at 4.0 m/s eastward relative to the ground. What is the magnitude of the boat's velocity relative to the ground (in m/s)?
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