<P> It is known by classical mechanics that the average kinetic speed v k (\ displaystyle v_ (k)) of an automobile and its passengers is simply the amount of space the car travels, divided by the elapsed time, i.e.: </P> <Dl> <Dd> v k = d t t (\ displaystyle v_ (k) = (\ frac (d) (t_ (t)))) </Dd> </Dl> <Dd> v k = d t t (\ displaystyle v_ (k) = (\ frac (d) (t_ (t)))) </Dd> <P> where d (\ displaystyle d) is the distance travelled by the car and t t (\ displaystyle t_ (t)) is the travelled time, i.e., the time elapsed during the travel . </P>

What are the negative effects of the automobile