A driver traveling at 70 mph on an interstate highway shift his eyes from left to right and focuses on a deer standing on the shoulder. Estimate the distance in feet the vehicle travels as the driver's eyes shift and fixate.
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Q: :If speed is equal to 35 mph, then perception reaction distance would be 200 ft 129 ft O 125 ft O
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- 10. A man driving his car 45 Mph suddenly sees an object in the road 60 ft ahead. What constant deceleration in ft/s2 is required to stop the car in this distance?If the design speed is 80 kmph, perception reaction time 3 seconds and coefficient of friction 0.5, the safe stopping sight distance is.... 2 Marks] [1001QUESTION 3 To measure the stopping sight distance, what is the height (ft) of the driver's eye?
- A driver traveling at 70 mph sees a hazard at a certain distance ahead. The driver theapplies the brakes immediately time is 4 seconds and begins slowing the vehicle at 15the distance from the stopping point to avoid hitting the boulder is 12. 30 meters. Calculatethe distance from the boulder upon perception. ID NUMBER 143At a certain instant, two cars, A and B, are 600m apart. At this instant, A has a speed of 24km/hr and accelerating 0.9m/s2, while B is moving toward A with a speed of 48km/hr and accelerating 0.6m/s2. Determine The time they will meet A 18.916s B 20.184s C) none D) 17.936s (E) 15.087sCOMPUTE THE MINUMUM PASSING SIGHT DISTANCE FOR THE FOLLOWING DATA: SPEED OF THE PASSING CAR = 90 KPH SPEED OF THE OVERTAKEN VEHICLE = 80 KPH TIME OF INITIAL MANEUVER = 4 SEC AVERAGE ACCELERATION = 2.4 KPH/SEC TIME PASSING VEHICLE OCCUPIES THE LEFT LANE = 9 SEC DISTANCE BETWEEN THE PASSING VEHICLE AT THE END OF ITS MENEUVER AND THE OPPOSING VEHICLE = 80 KPH
- How fast is the car going when t = 6 s?:If speed is equal to 35 mph, then perception reaction distance would be 200 ft O 129 ft 125 ftTM Ford® Mustang Cobra time-to-speed data for a 1994 Ford Mustang Cobra accelerating from rest to 130 mph. How far had the Mustang traveled by the time it reached this speed? (Use trapezoids to estimate the area under the velocity curve, but be careful: The time intervals vary in length.) The accompanying table shows Speed change Time (sec) 2.2 Zero to 30 mph 40 mph 50 mph 60 mph 70 mph 80 mph 90 mph 100 mph 110 mph 120 mph 130 mph 3.2 4.5 5.9 7.8 10.2 12.7 16.0 20.6 26.2 37.1
- A vehicle is initially located at 350 ft away from a 3 ft diameter roadside object and is moving towards the object at the speed of 35 mph. Calculate the change in visual cone angle (reported in degrees) made by the object on the driver's eye after the vehicle has moved for 4 seconds. [Hint: compute the visual cone angles at initial position and at position after 4 seconds and report the difference]An automobile is traveling at 25 m/s. It takes 0.3 s to apply the brakes after which the deceleration is 6.0 m/s?. How far does the automobile travel, in meters, before it stops?The stopping sight distance (SSD) for a level highway is 140 m for the design speed of 90 km/h. The acceleration due to gravity and deceleration rate are 9.81 m/s² and 3,5 m/s², respectively. The perception/reaction time (in s, round off to two decimal places) used in the SSD calculation is