Thread: Dangers of High Speed Trains Pushed from the Rear
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Old November 12th 04, 05:00 PM posted to uk.railway,uk.transport.london,misc.transport.rail.europe
Ian Johnston Ian Johnston is offline
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Default Dangers of High Speed Trains Pushed from the Rear
On Wed, 10 Nov 2004 22:20:42 UTC, Pyromancer
wrote:

: Stopping 350 tons in such a short space requires the
: dissipation of a great deal of energy

350 tons at 100mph (45 m/s) is 1/2 * 350 * (45)^2 = 350MJ which is the
same amount you get if you dropped the entire train from a height of
100m (three hundred feet). Or, if you prefer, 84 kilograms of TNT.

Ian
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