For a given motor vehicle, the maximum achievable deceleration from braking is approximately $7$

$\frac{m}{s^2}$ on dry concrete. On wet asphalt, it is approximately $2\mathrm{.}5\frac{m}{s^2}.$ Note that $1m\frac{i}{h}r$ corresponds

to $0\mathrm{.}447\frac{m}{s}.$ Round answers to to the nearest whole number.

Find the total distance that a car travels in meters on dry concrete after the brakes are applied until it

comes to a complete stop if the initial velocity is $67m\frac{i}{h}r.$

$m$

Find the corresponding distance if the surface is slippery wet asphalt.

$m$