It has been years since I have taken physics and for the life of me I cannot figure out how to solve the following real-world problem.(adsbygoogle = window.adsbygoogle || []).push({});

Given 2 vehicles a & b:

a's speed = 0, weight = 4,250 lbs

b's speed = x, weight = 3,260 lbs.

After b impacts a from behind and leaving a space of 8 feet between the two vehicles, what is the is approximate speed of vehicle B. I realize of course road conditions, brakes applied, vehicle absorbing the blow, etc plays a big part but I'm just trying to get a near-figure.

Thanks!

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# Homework Help: Basic physics, solve for speed?

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