- #1

- 86

- 0

**1. Homework Statement**

A stone is dropped off a cliff of height h. At the same time, a second stone is throne straight upward from the base of a cliff with an initial velocity v. Assuming that the second rock is thrown hard enough at what time t will the two stones meet.

**2. Homework Equations**

Uniform acceleration equations

**3. The Attempt at a Solution**

I tried a few different things, and nothing worked. I don't have anything written down right now though.

I just wrote Δd = v

_{1}Δt + 1/2gΔt

^{2}, for both stones, substituting Δd for x in one of the equations, and h - x in the other.

So, I just had x = 1/2gΔt

^{2}and h - x = v

_{1}Δt + 1/2gΔt

^{2}

I tried combining them, but I got to a point where I didn't think I could do anything else with it, and it just felt wrong.

Am I thinking about it wrong?

Last edited: