Ahalo jumper with a mass of m parachutes from a gas balloon at time t = 0. under certain assumptions, the distance, s(t), that he has fallen in time t is given by s(t) = m2 g k 2 ( kt m + e −kt/m − 1) for some positive constant k. (a) find s ′ (0) and s ′′(0) and interpret the quantities in terms of the halo jumper. (b) relate the units of s ′ (t) and s ′′(t) to the units of t and s(t).