2. Free Fall
โข Free fall โ in the absence of air
resistance, all objects dropped near the
surface of the Earth fall with a constant
acceleration
โข Denoted by the symbol g
โข g = - 9.81 m/s2 (negative because
acceleration is directed downward)
3. Graphical Analysis of velocity vs.
time graph
โข Straight line slope indicates
acceleration is constant (fig. 2-16)
โข There is an instant where velocity is 0
(when ball reaches peak of upward
motion)
