1. ## Falling Object

The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t 2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 4 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.)

MY SET UP:

s = 48

h = 0

Is that right?

Then:

0 = 48 - 16t^2

Is this the correct equation?

2. Hello
Originally Posted by magentarita
The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t 2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 4 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.)

MY SET UP:

s = 48

h = 0

Is that right?

Then:

0 = 48 - 16t^2

Is this the correct equation?
You can imagine it this way
The bottle drops from 4th storey
Had the woman not moved there would be a
since the woman is 6feet tall the bottle doesn't need to
cover this distance hence you need to calculate
the time taken for covering adistance
given by
4 x 12 - 6
so the eqn becomes
$
6=42-16 t^2
$

and hence the woman wold be safe

Hello

You can imagine it this way
The bottle drops from 4th storey
Had the woman not moved there would be a
since the woman is 6feet tall the bottle doesn't need to
cover this distance hence you need to calculate
the time taken for covering adistance
given by
4 x 12 - 6
so the eqn becomes
$
6=42-16 t^2
$

and hence the woman wold be safe
Thanks for the set up.