Lesson 3 of 4 · Grade 10 Physics
Linear motion
18 min
Definitions
- Distance: total length travelled (scalar).
- Displacement: distance in a given direction (vector).
- Speed = distance ÷ time.
- Velocity = displacement ÷ time.
- Acceleration = change in velocity ÷ time: a = (v - u) ÷ t, in m/s².
Equations of uniformly accelerated motion
- v = u + at
- s = ut + ½at²
- v² = u² + 2as
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