Joel Walker writes (Quoting road test): > > While reducing our field test data to the > proper format for the data sheet, we became intrigued with comparative > acceleration and deceleration rates, and came up with the interesting > fact that the average deceleration rate from 60 mph to stop was exactly > twice the average acceleration rate to 60 mph from a standing start. It > is comforting to know that you can stop in half the distance that it > took you to reach a given speed. Well I shore would hope so. I bet it took them a quarter mile to get up to 60 mph. Looking at it the other way, they are saying that because the bus decelerated from 60 to 0 in 160 feet, it will accelerate from 0 to 60 in 320 feet? Get real! Bad math on their part, methinks, in that last sentence. I think it should be more like the *square root* of the distance, but I'm not sure. My last physics class was many years ago. -David ============================================================================ David Schwarze '73 VW Safare Custom Camper (Da Boat) SAIC Comsystems, San Diego Calif. '73 Capri GT 2800 (Da Beast) e-mail: schwarze@nosc.mil '87 Mustang Lx 5.0 (Da Sleeper) http://papaya.nosc.mil/~schwarze '93 Weber WG-50 (Da Piano) ============================================================================
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