physics
posted by liz .
a patrol of timing paths each vehicle needs to travel the first half of the distance at a speed of 140 km / h. if the speed limit is 80km / h. which should be the highest average speed of the car in the second half of the section, to avoid being fined?

Drivers are ticketed and fined based upon instantaneous speed, not average speed. Slowing down in the second half of the trip should make no difference in the probability or amount of being ticketed and fined.
This is a nonsensical question in my opinion, and an indication of low quality math instruction from your school system or correspondence course.
Also, the expression "a patrol of timing paths each vehicle needs" makes no sense.
Respond to this Question
Similar Questions

physics
You drive on an interstae 10 from San Antonio to Huston, half the [b]time[/b] at 55km/h and the other half at 90km/h. On the way back you travel half the [b]distance[/b] at 55km/h and the other half at 90km/h. What is your average … 
physics
A runner, beginning at rest, completed a 50 m run with a final speed of 6 m/s. Assuming constant acceleration. a) What was the average speed of the runner? 
physics
A stunt driver starting from rest needs to achieve a speed of 26.2 m/s. If her vehicle accelerates at 8.3 m/s/s, what distance (in m) must she travel to achieve the desired speed? 
physics
A car moves a distance of 200 km. It covers the first half of the distance at speed 40 km/h and second half of the distance by speed v. The average speed is 48 km/h. Find the value of v 
physics
a car travels first half distance between two places with average speed of 30 km per hour and remaining half with a speed of 50 km per hour what is the average speed of the car is A 37.5KM/hr B 10km/hr //c// 42km/hr D 40km/hr 
physics
speed limit on freeway is 36 m/s and speed limit on service drive is 9 m/s. Mr. Scotts focus has a mass of 900 kg. Since friction depends on so many factors such as the condition of the vehicle and direction of wind, the civil engineer … 
Math
Vehicle can travel 060mph in 7.6 sec. From a dead stop, what is the highest rate of speed vehicle can reach and decelerate to 10mph in 500 ft distance? 
math
Ling lives 2 miles from school. It took him 15 minutes to bike from school to home. The first half of the distance he biked at a speed of 12 mph. What was his speed for the remaining distance? 
Math Algebra
A drive took some hours to travel from Rome to Milan. His average speed for the whole journey was 80 km/hour. For the first half of the journey he traveled at an average speed of 50km/hour. Find his average speed for the second half … 
Science
A car travel along a straight line for first half time with speed 40km/hrs & second half time with speed 60km/hrs. Find average speed.