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## Homework Statement

**A stone is thrown horizontally from a cliff 25 m high and lands on the ground 22 m from the foot of the cliff. What is the horizontal acceleration on the stone?**

## Homework Equations

**a = Δv/Δt = (vfinal - vinitial) / (tfinal - tinitial)**

## The Attempt at a Solution

**??? I don't know where to start!! Please help!**