Posted by **Bill** on Monday, October 12, 2009 at 2:36am.

A stone, initially at rest, is dropped from the top of a building. On its way down, it passes a window that is 2.52m tall. It takes 0.134 seconds to pass the window. From how far above the top of the window was the stone dropped?

- Physics -
**drwls**, Monday, October 12, 2009 at 6:41am
Let H be the distance from the top of the building to the top of the window.

Let T be the time for the stone to reach that point. g = 9.91 m/s^2

Here is what you knmow:

H = (1/2) g T^2

H + 2.25 = (1/2) g (T + 0.134)^2

Combining the two equations, you can eliminate H

2.25 = (1/2) g [0.268 T + 0.018]

Solve that for T; then compute H with one of the original equations.

## Answer This Question

## Related Questions

- physics - A stone is dropped from edge of a roof and is observed to pass a ...
- Physics - A stone is dropped off the science building and accelerates, from rest...
- physics - A stone is dropped off the science building and accelerates, from rest...
- physics - A stone is observed falling past a small window 1 meter tall in 0.2 ...
- Physics - A stone is dropped from the root of a building. A person in the ...
- math - A steel ball is dropped from rest from the roof of a building. An ...
- physics - a flowerpot falls from a window ledge far above the street. Some ...
- Physics 11 - A stone at rest is dropped from a 20m tall building. After falling ...
- Physics - A roof tile falls from rest from the top of a building. An observer ...
- physics - A roof tile falls from rest from the top of a building. An observer ...

More Related Questions