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Old 01-19-2005, 10:07 PM
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BodhiBenz1987 BodhiBenz1987 is offline
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Join Date: Dec 2004
Location: East Coast
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Quote:
Originally Posted by Carrameow
My defense is based on the fact that the police car was a 1/2 mile from where i was stopped at the traffic light and where he spotted me. So if say my 0 to 60 time is 15 seconds, my acceleration is (60mph)/(15 sec), or .0011111 miles/sec squared (there are 3600 sec in an hour). Then i could calculate the fastest I could go in that 1/2 mile using vexp2= 2ax , but my physics and my head are mushy, and somehow I just got my half mile time as 100 mph, which I think is wrong.
What I am really trying to find is a 1/2 mile time for a 300D, whats the highest speed I could do from dead stop to a 1/2 mile at full acceleration...
Forgive my English-Major retardation, but shouldn't it come into play that the car's acceleration is not a constant number? E.g., the '87 300D accelerates from 0-20 in 2 seconds. To pick up another 20 (from 20-40 mph), it takes 3 seconds. To pick up the next 20 (from 40-60), it takes over 4 seconds. As speed increases, acceleration decreases, and not at a constant rate. So I think there are too many variables to solve for velocity, because you don't know the acceleration rate without knowing the velocity, or the time it took you to get .5 miles. Maybe I'll regret opening my mouth on this one, as I might have said something revealingly stupid. I haven't taken physics since junior year in high school, so even though I'm decent with math and with engineering-type knowledge, I have absolutely no idea what I'm talking about now.
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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)
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