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January 30, 2015

January 30, 2015

Posted by **Makinin** on Sunday, February 19, 2012 at 4:01am.

- physics -
**drwls**, Sunday, February 19, 2012 at 7:54am[v1*t -(a/2)t^2] + [v2*t - (a/2)t^2] = x

(v1 +v2)*t - a t^2 = x

a is the acceleration rate.

The time t to collision depends upon the deceleration rate a as well as v1+v2 and x.

If there is no real solution to the quadratic, they do not collide.

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