# Simple pullee question?

1. Oct 9, 2008

### I_LuV_FiZiX

1. The problem statement, all variables and given/known data
A window washer pulls herself upward using the bucket-pulley apparatus shown in figure below.

2. Relevant equations
With what force must she pull downward to raise herself slowly at constant speed? The mass of person plus bucket is 66.3 kg.

3. The attempt at a solution
f=ma
f=66.3 x 9.8
f=650N
wrong?

2. Oct 9, 2008

### tiny-tim

Hi I_LuV_FiZiX!

(You haven't told us what the pulley arrangement is. )

Hint: in these questions, always ask yourself what the tension in the rope is.

3. Oct 9, 2008

### I_LuV_FiZiX

the pulley arrangement is two strings parallel to each other with a pulley at the top, she is in the bucket attached to the string on the left, and she is pulling down on the pulley on the right in order to bring her and the bucket up....thanks for considering my question

4. Oct 10, 2008

### tiny-tim

ok … then consider the forces on the bucket … what is the tension in the rope if there is no acceleration?