SUVAT Equations

• What are the SUVAT equations used for?

  Motion with constant acceleration
• What does 's' represent in the SUVAT equations?

  Displacement (m)
• What does 'u' represent in the SUVAT equations?

  Initial velocity (m/s)
• What does 'v' represent in the SUVAT equations?

  Final velocity (m/s)
• What does 'a' represent in the SUVAT equations?

  Acceleration (m/s²)
• What does 't' represent in the SUVAT equations?

  Time (s)
• What is the significance of the variable 't' in the SUVAT equations?

  It is the only scalar quantity
• What does it mean when an object 'starts from rest' in SUVAT equations?

  Initial velocity u = 0
• What does 'falling due to gravity' imply about acceleration?

  a = g = 9.81 m/s²
• Why is it important to maintain consistency in defining positive and negative directions?

  To ensure accurate vector calculations
• If downwards is negative, what must be true for a ball traveling upwards?

  s must be positive, a must be negative
• In what scenario are SUVAT equations applicable?

  Motion with constant acceleration in a straight line
• What are the steps to use the SUVAT equations?

  1. Identify known and unknown variables
  2. Choose the appropriate SUVAT equation
  3. Convert units to SI and solve
  4. Split into two parts if necessary
• What is the equation that links s, u, a, and t?

  s = ut + ½at
• What should you do if a question requires using SUVAT equations twice?

  Split the question into two parts
• What speed must the train not exceed when passing marker 2?

  10 m/s

  
• What happens if the time between markers is less than 20 s?

  The emergency brake will apply
• What is the initial speed of the trains coming from the left?

  50 m/s