(adsbygoogle = window.adsbygoogle || []).push({}); Another free fall topic :)

Here I don't really know where to start

1. The problem statement, all variables and given/known data

A body in free fall covers 64% of the total distance fallen in the last second. From what height did it fall?

2. Relevant equations

y= y1 + y2, where y1=0,36y and y2=0,64y

y=.5at², where a=g=9.8 m/s²

and this is where I get stuck. In a tv-diagram it would be a straight line from origo, and the area under the line gives the distance fallen. And I'm still stuck. Utilizing the y=.5gt² would give me a parabola, and the area under the curve would give me the velocity with which it hits the ground, but I'm not sure whether that would help me much either.

3. The attempt at a solution

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# Homework Help: Another free fall topic

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