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IRA11Y
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May 2002
   
Re: Physics problem. Sat, 26 March 2005 03:29 Go to previous messageGo to previous message
very nicely worded, but i think all this was summed up back at page one

Quote:

PE= 0.5 x mass x velocity^2

so lets take the first scenario of two cars traveling at 50kmh towards each other and assume they both weight 1000kg

PE= 0.5 x 1000 x 50^2 x 2
PE= 500 x 2500 x 2
PE= 1.25M x 2
PE= 2.5Mj of energy

scenario 2 the same car of 1000kg travelling at 100kmh to a stationary object that weighs 1000kg

PE= (0.5 x 1000 x 100^2) + (0.5 x 1000 x 0^2)
PE= (500 x 10000) + (500 x 0)
PE= 5Mj + 0j
PE= 5Mj of energy





please by all means carry on the banter between the two of you as im finding it quite interesting to read the two opinions and arguments presented for each Smile
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Read Message   Physics problem. SquidThu, 24 March 2005 03:43
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