- #1

- 8

- 0

## Homework Equations

Elevator Up: FT - mg = ma

so: FT = m (a + g)

so I figure that:

@ a<0 FT< FG

@ a=0 FT= FG

@ a>0 FT > 0

I was curious what the values are when the elevator is going down.

I used this equation: mg - FT = ma

so: FT = m ( g - a )

so I figure that:

@ a<0 FT> FG

@ a=0 FT= FG

@ a>0 FT< FG

## The Attempt at a Solution

Is it true that an elevator cable would have the same FT if the elevator was decelerating downward at -3 m/s2 as it would accelerating upward at 3 m/s2 ? I am having a hard time conceptualizing why that is true in my mind's eye.

Thanks