well i dont know what physics classes you took but as you said physics is physics... think of it logicially. car tilts forward during braking (we agree on this) with stiffer suspension it doesn't lean as much thus less weight is shifted onto it(cuz the weight doesn't change in the car)... DUH, cuz the springs/struts keep the body flatter (if thats a word). Lets take this model for example.
0 = standard
+ = X amount more
- = X amount less
*note: not an exact science im drawing
if (0)-(0) is the car's weight distribution at standing
(++)-(-) during standard braking
if (0)-(0) is the car's weight distrubution at standing
(+)-(0) would be the new balance of the brakes given a more even distribution of weight.
Just like 4wd cars they can get more grip to the ground than a 2wd car. Now thats a rather wild example but true to form.
Now having less weight on a given grip point (tire to ground) will evenly distribute it (during braking). MORE weight on rear LESS on front... rear brakes will be more effective with an increased fricton. the springs keep the weight from flying forward. Balancing out the brakes better. Now whether these brakes are actually balanced is a question none of us can answer as of yet. But Suspension does assist in launches and braking, that i can ASSURE you of.
