Speed is the rate of change of distance with time.
Speed (v) = Distance(s) / Time(t)
Speed is a scalar quantity that refers to "how fast an object is moving."
a scalar quantity has magnitude only.
- Speed is directly proportional to distance when time is constant: v ∝ s (t constant)
- Speed is inversely proportional to time when distance is constant: v ∝ 1/t (s constant)
