Instantaneous velocity

• What is the definition of instantaneous velocity?

  The instantaneous velocity is the velocity of an object measured over a very short time.
• How is instantaneous velocity determined from a displacement-time graph?

  It is found by drawing a tangent to the graph at a particular time and calculating the gradient of that tangent.
• What is the first step to find the instantaneous velocity at a specific time on a displacement-time graph?

  Draw a tangent to the displacement-time graph at that time.
• What is the process to calculate instantaneous velocity from a displacement-time graph?

  1. Identify the specific time on the graph.
  2. Draw a tangent line at that point.
  3. Calculate the gradient (slope) of the tangent line.
  4. The gradient gives the instantaneous velocity.