Back to Kinematics

Lesson PreviewLesson 3 of 6 in this unit

2.3 Kinematic Equations

Part of Kinematics in Honors Physics. Read the opening section, then create a free account for the full interactive lesson, practice, and progress tracking.

The Big 3

The Big 3 are a set of 3 equations in Kinematics that can be derived using calculus from the definitions of displacement, velocity, and acceleration. These equations have parameters such as only being useful in 1-dimension and having a constant acceleration as a requirement for any of these equations to work. These equations are often the basis of all the Kinematics problems that you will have to solve in physics. The Big 3 equations include:

v=vo+atv=v_o+at
x=xo+vot+12at2x=x_o+v_ot+\frac{1}{2}at^2
v2=vo2+2a(x−xo)v^2=v_o^2+2a(x-x_o)
  • v{v} is the final velocity
  • vo{v_o} is the initial velocity
  • a{a} is the acceleration
  • t{t} is the time interval
  • x{x} is the final position
  • xo{x_o} is the initial position

Continue the full lesson in Stellar

Create a free account to unlock the remaining sections, checkpoints, course practice, and progress tracking for Honors Physics.