Net force and acceleration as a result of a parachute

[ardour]

Homework Statement

Homework Equations

F= ma

The Attempt at a Solution

For 8, I think the parachute causes Al and Betty to stop accelerating, so they both have the same net force. (Answer A)

F= ma
F=m*0=0
F=3m*0=0

For 9, I feel like Al should experience more air resistance than Betty to make up for his greater mass, but
I'm not sure what equation would be used to calculate this.

 

[TSny]

Welcome to PF!

Good answer for 8.

For 9, your intuition is good. For a more carefully reasoned argument, consider the individual forces acting on Al alone. It's a good idea do draw a diagram showing the forces acting on an object (a "free body diagram"). What can you say about these forces? Do the same for Betty.