a bungee jumper is falling at a velocity of 2m/s [down] when the bungee cord just starts to stretch. after the cord stretches for 2.5s, the velocity is 11m [down]. assume that the acceleration is at constant.
a) what is the acceleration of the jumper?
b) what is the total time for the jumper to slow down from 25m/s [down] to zero?