QUESTION 4 c) A parachutist bails out of an aeroplane and is in free fall for a time of 4 seconds as shown in the diagram below. At a point, the parachute opens and thereafter, the parachutist reaches the ground with a speed of 3 m s. If the total distance of the fall is 950m. What is the deceleration rate after open the parachute (acceleration is constant after open the parachute) ? Note: acceleration due to gravity, g = 9.8 m s-2 v=v + at v = v + 2a (x-xo) 1 = at + vot + xo x = Vo=0 m s_ Free Fall t=4s (a) (b)