Unit 1 · Kinematics

Chapter 1.3

Reference Frames and Motion in Two Dimensions

People on a moving walkway disagree with people on the floor about your speed, yet everyone agrees about your acceleration. And a tossed coin drifts sideways and falls at the same time, neither motion noticing the other.

free · lesson 3 of 18

By the end

  1. 01Convert velocities between inertial reference frames along a line and explain why acceleration is the same in all of them
  2. 02Resolve a vector into perpendicular components and recombine them into a magnitude and direction
  3. 03Solve projectile problems as two independent one-dimensional motions sharing a clock

In unit 1

  1. 1.1Vectors and Motion Along a Line
  2. 1.2Motion Graphs and the Constant-Acceleration Equations
  3. 1.3Reference Frames and Motion in Two Dimensions
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