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Physics

Module 3: Waves and Thermodynamics

Modelling Relationships between Variables in Rectilinear Motion

What are the equations used in rectilinear motion?

In this post, you use mathematical modelling and graphs, selected from a range of technologies, to analyse and derive relationships between time, distance, displacement, speed, velocity and acceleration in rectilinear motion, as a part of the Prelim Physics course under the module Kinematics and sub-part Motion in a Straight Line. The equations used in rectilinear motion are:

  • s = ut + \frac{1}{2}at^{2}
  • v = u + at
  • v^{2} = u^{2} + 2as

 

The following two videos cover the equations used in rectilinear motion and the relationships between each variable in horizontal and vertical motion.

Part 1: Horizontal motion

 

Part 2: Vertical motion