Was the firing of Juan Williams racist?
Speed bumps are usually painted and are really noticeable no matter what size. They are probably bigger to compensate for the great improvement in suspension. A violent jolt in an old car could become a small bump in a modern car.
All you need is Pressurerho*g*h, where rho is the density of water, g is gravity, h is 20m Therefore P 1000*9.81*20 P 196200N
