Acceleration-Time Graph

• On an acceleration-time graph…
• Slope is meaningless
• The y-intercept equals the initial acceleration
• A zero slope (horizontal line) represents an object undergoing constant acceleration
• The area under the curve equals the change in velocity

• Acceleration is defined as the rate of change of velocity
  • In other words, it describes how much an object's velocity changes every second

• The equation below is used to calculate the average acceleration of an object:

• Where:
  • a = acceleration in metres per second squared (m s^–2)
  • Δv = change in velocity in metres per second (m s^–1)
  • t = time taken in seconds (s)

• The change in velocity is found by the difference between the initial and final velocity, as written below:

change in velocity = final velocity − initial velocity