Terminal Velocity of a skydiver

[Shellina]

Homework Statement

[/B]
A skydiver, initially undergoing a high acceleration, is approaching her terminal velocity. At a given
instant, the fluid friction (due to air resistance) on the diver and her diving gear is 680. N [up] and the
unbalanced force causing the acceleration is 40. N [down]. Find the mass of the diver with her gear.

Homework Equations

The Attempt at a Solution

My attempt: Fg = mg
Fg/g=m
40/9.8=m
4.08 kg =m

 

[Vagn]

Homework Statement

[/B]
A skydiver, initially undergoing a high acceleration, is approaching her terminal velocity. At a given
instant, the fluid friction (due to air resistance) on the diver and her diving gear is 680. N [up] and the
unbalanced force causing the acceleration is 40. N [down]. Find the mass of the diver with her gear.

Homework Equations

The Attempt at a Solution

My attempt: Fg = mg
Fg/g=m
40/9.8=m
4.08 kg =m

Your diver has a force acting against gravity. The net force is 40N, how would you find the gravitational force knowing the net and frictional force?