Scalar + Vector

• A scalar has magnitude but no direction
• A vector has magnitude and direction
• Examples of scalar

  • Speed
  • Distance
  • Mass
  • Time
• Examples of vector

  • Velocity
  • Displacement
  • Force
  • Acceleration
• SUVAT

  S = Distance

  U = Initial velocity

  V = Final velocity

  A = Acceleration

  T = Time
• Acceleration = Change in velocity / time

  a = (v - u) / t

  m/s2 = m/s / s
• v2 - u2 = 2as

  (final velocity)2 - (initial velocity)2 = 2 x acceleration x distance