Homework Help: Physics

Posted by sam on Friday, September 14, 2012 at 11:16pm.

Highway safety engineers build soft barriers so that cars hitting them will slow down at a soft rate. A person wearing a safety belt can withstand an acceleration of 300m/s^2.
How thick should barriers be to safely stop a car that hits the barriers at 92.8km/h?
Answer in units of m.

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