fsignment

A test of a driver's perceptron$-$reaction time is being condueted on a special testing trock wuth a wiet pavement, charactersed by friction of $0\mathrm{.}3$ at a driving speed of $90k\frac{m}{h}r.$ when the driver is sober, a stop can be tamade just in time to avord hitting an object that weas visible $162$ m ahead. After a fove drimtis, under the same conditions, the driver fails to stop in time and hits the object at a speed of $53k\frac{m}{h}r$

Defermine the driver's perception $-$ reacfion time do before and after drinting

$(1)$ Based on the given intial driving speed, explain the effects of perception, reaction time on the distance travelled.