\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A particle moves in a straight line with displacement from an origin O given by \(s(t) = t^2 - 6t + 5\) metres at time \(t\) seconds. Find:
  1. the average velocity for the time interval from \(t=1\) to \(t=4\) seconds.
    m/s
  2. the instantaneous velocity at \(t=3\) seconds.
    m/s