Surprising result of calculating speeds of two cars hitting a tree

[kinscore]

@v_vxn

The point made in the video of an expanding (i.e., spacing is non-linear) speedometer was an EXCELLENT idea and all car manufacturers should implement this. Would be a great way to teach people the physics of piling on speed and what it does to your braking time.

The Citroën DS and SM (and possibly others) had stopping distance on the speedometer, but it was all laid out linear for speed, so didn’t intuitively convey stopping distance.