Bronco skydives and parachutes from a stationary helicopter. Various stages of fall are shown in positions a through f in the table shown below. Using Newton's 2nd law, find Bronco's acceleration at each position.
a = net F/m a = (W  R)/m
You need to know that Bronco's mass, m, is 100 kg so his weight, W, is a constant 1000 N. The author is using the approximation, g = 10 m/sec^{2}. Air resistance R varies with speed and crosssectional area.
