A woman fell 14.4m from the top of a building, landing of the top of a metal ventilator box, which she crushed to a depth of 80 cm. She survived without serious injury. What acceleration (assume uniform) did she experience during the collision?

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Answer 1 · 2017-02-06T11:51:38

I got #176.4m/s^2# that seems very big! Check my reasoning and my maths!

I have chosen the top of the building as origin so my distances downwards will be negative: enter image source here