# Parachutist falling

1. Dec 24, 2013

### KiNGGeexD

A 60kg parachutist and her 7kg parachute fall at a constant 6m/s

Find the force on the woman due to chute?

My attempt:

All I can gather from this is that the chute and her are not accelerating, so get are at terminal velocity?

2. Dec 24, 2013

### Staff: Mentor

She reached the terminal velocity (that's the reason the velocity is constant), right.

Hint:
Which forces act on her?

What does it mean that she is not accelerating?

3. Dec 24, 2013

### KiNGGeexD

Because she ain't accelerating the force of her downwards is equal to the force upwards because of the parachute right?

4. Dec 24, 2013

### KiNGGeexD

Is mg still acting on her?

5. Dec 24, 2013

### Staff: Mentor

Right.
As long as she is still on earth... sure.

6. Dec 24, 2013

### KiNGGeexD

Ok so I've got mg acting downwards and mg for the parachute? And total mg am I on the right track?

7. Dec 24, 2013

1-What is the downward force?
2-If downward force is equal to upward force,what is the upward force?
(If downward force is equal to upward force,then the net(total) force is zero(Because of forces cancelling out)

8. Dec 24, 2013

### KiNGGeexD

Mg-mg=0

Where m is the mass of the parachute?

9. Dec 24, 2013

### haruspex

Er.. no.
Just concentrate of the forces on the person. The 'chute is just something up there somewhere applying a force, you don't care what it is, so its mass is irrelevant.

10. Dec 24, 2013

### KiNGGeexD

Ah ok! So the answer is 588N?

11. Dec 24, 2013

Yes.