Problema Solution
traffic engineers study how long the yellow light for a traffic siganl should be. for one intrsection ,the nmber of seconds n required for a yellow light is realted to the average appraoch speed v, in feet per second , by follwing..n= 1+ v/ +100/
Answer provided by our tutors
given equation is n = 1+v/100 .
we know that average appraoch speed v range between 0 to infinate
=> 0 < v < infinate
divide by 100.again we get resulst is
0< v/100 < infinate
adding 1 we get
1< 1+v/100 < infinate
i < n < infinate
where n is the nmber of seconds