Posted by **Wanda** on Monday, August 15, 2011 at 1:25am.

The time (t, in seconds) for a free-falling object to fall d feet is described by the mathematical formula:

t=d over the square root of 16

If a worker accidentally drops a hammer from a building and it hit the ground 4 seconds later, from what height was the hammer dropped

- MATH -
**johnathon**, Monday, August 15, 2011 at 1:38am
sqrt(16)=4

t=d/4

t=4

4=d/4

d=16

the hammar was dropped from 16 feet

- MATH -
**Reiny**, Monday, August 15, 2011 at 8:32am
your formula for time should have been:

t = √(d/16) or d = 16t^2

when t=4, then

d = 16(4^2) = 64 feet

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