30mph is 13.4m/s, with an average deceleration of 1g...

the stopping distance is 9.16m (=(13.4^2)/(2*9.81)). Accord is not a performance car with performance brakes and summer tires. It's almost impossible for it to achieve an average deceleration of 1g between 30mph and 0mph. I'd say 10m is a very reasonable stopping distance -- probably with ABS fully active (if you have it). Your brake don't have a problem, at least at 30mph.

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• 同意。30mph刹車,即使不算反應時間,也不會低於10米 -滿地找牙- ♂ (201 bytes) () 08/20/2010 postreply 19:38:29

• 回複：謝謝BigV8 and Lyedge -lund- ♀ (0 bytes) () 08/20/2010 postreply 19:39:14