\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A particle moves in a straight line with displacement from an origin O given by \(s(t) = 10 - 8e^{-0.5t}\) metres at time \(t\) seconds, for \(t \ge 0\).
  1. Find the average velocity for the time interval from \(t=0\) to \(t=2\) seconds.
    m/s
  2. Find the instantaneous velocity at \(t=2\) seconds.
    m/s