(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An alert hiker sees a boulder fall from the top of a distant cliff and notes that it takes 1.3s for the boulder to fall the last 3rd of the way to the ground. Ignore air resistance.a) what is the height of the cliff in meters? b) If in part a) you get 2 solutions what does the extraneous one represent?

2. Relevant equations

3. The attempt at a solution

looking at the last 3rd

Vi = ?

Vf = 0 m/s

a = -9.8 m/s/s

t = 1.3s

x = ?

possibly going to use this equation: x = xo +vit +.5at^2 ?

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# Homework Help: Free Fall help

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