In an adventure movie a 650-kg stunt woman falls 780 m and

Question

In an adventure movie, a 65.0-kg stunt woman falls 7.80 m and lands in a huge air bag. Her speed just before she hit the air bag was 11.1 m/s.

(a) What is the total work done on the stunt woman during the fall?

J

(b) How much work is done by gravity on the stunt woman?

J

(c) How much work is done by air resistance on the stunt woman?

J

(d) Estimate the magnitude of the average force of air resistance by assuming it is constant throughout the fall.

N