- #1

garcia1

- 27

- 0

## Homework Statement

A stone is thrown straight up from the ground

with an initial speed of 44.1 m/s . At the same

instant, a stone is dropped from a height of

h meters above ground level. The two stones

strike the ground simultaneously.

Find the height h. The acceleration of

gravity is 9.8 m/s2 .

Answer in units of m.

## Homework Equations

Kinematics equations, such as V^2 = Vo^2 + 2ax, V = Vo +at, x = Vot +1/2at^2, and x = 1/2(Vo +V)t

## The Attempt at a Solution

I first thought that by plugging the known variables, with V as 0 m/s, into V^2 = Vo^2 +2ax, solving for x. I got x=99.225. This was wrong. I then re-read the statement, thinking that I needed to double my answer, since the object thrown up also had a downward portion before it hit the ground with the falling object. This was x = 198.45m. This was also wrong.