A question of self-defence - Fire extinguishers & self defence

[Jim Choate]

On Mon, 23 Jul 2001, Matt Beland wrote:

> A "D based rocket" is no great amount of force. If it was light enough to go 
> as fast as you say, then it wouldn't go through plate glass, much less a 
> windshield.

20 N-s for a D. Figure a rocket that weighs about a pound. It's about
.2s after launch (it was launched horizontaly and about 30 ft. away).


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