Required information At 3:00 P.M., a bank robber is spotted driving north on 1-15 at milepost 103. His speed is 117.0 mi/h. At 3:37 P.M., he is spotted at milepost 178 doing 104.0 mi/h. (Assume a straight highway). Assume north to be positive. What is his average velocity during this time interval? Enter a positive value if the direction is toward north and enter a negative value if the direction is toward south. mi/h

Required information At 3:00 P.M., a bank robber is spotted driving north on 1-15 at milepost 103. His speed is 117.0 mi/h. At 3:37 P.M., he is spotted at milepost 178 doing 104.0 mi/h. (Assume a straight highway). Assume north to be positive. What is his average velocity during this time interval? Enter a positive value if the direction is toward north and enter a negative value if the direction is toward south. mi/h

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

We know that q=ku for traffic flow. If we measure speeds and densities at three points within a mile at the same time, which of the following is true? a. Average u will be the same at all three points b. Average k will be the same at all three points c. Average q (calculated) will be the same at all three points d. None of the above 6. 7. Headway is defined as the time between vehicles passing a fixed point on the road, measured from: a. Front bumper of first car to back bumper of second car b. Front bumper of first car to front bumper of second car c. Back bumper of first car to front bumper of second car d. None of the above
The reaction time of the average automobile driver is about 0.7sec. The reaction time is the interval between the perception of a signal to stop and the application of the brakes. If an automobile can decelerate at 4.5 m/sec?, compute the total distance covered in coming to stop after a signal is observed from an initial velocity of 48kph.
Car A is traveling at a constant speed vA = 132 km/h at a location where the speed limit is 100 km/h. The police officer in car Pobserves this speed via radar. At the moment when A passes P, the police car begins to accelerate at the constant rate of 4.1 m/s² until a speed of 169 km/h is achieved, and that speed is then maintained. Determine the distance s required for the police officer to overtake car A. Neglect any nonrectilinear motion of P. VA Answer:s= m
1. Flow is defined as the equivalent hourly rate at which vehicles pass a point on a highway during a time period. 2. The theoretical minimum value of occupancy for a loop detector installed on a highway is 3. The vehicle headway is always less 4. Time-mean speed is equal to the arithmetic (greater/less) than the value of time gap. (arithmetic/harmonic) mean of the spot speed values.
The length of a highway is 550 m when a head-on vehicle collision occurred. Police reports show that neither human error nor vehicle malfunction was the cause of the collision. Check if the length of the highway is sufficient for an overtaking maneuver. *Accident Report: Speed of Overtaking Car = 96 kph, Speed of Overtaken Car = 88 kph, Perception-reaction Time = 2.5 sec, Average acceleration = 2.4 m/sec2, Time of the passing vehicle occupying the left lane = 10.4 sec, Distance between the passing vehicle at the end of its maneuver and the opposing vehicle = 84m.
Five vehicles are traveling the highway from Point A to Point B at constant speeds. An observer at point A observes the five vehicles passing the designated point during an interval period of 29 seconds. Speeds of the vehicles are as follows : 55, 40, 45, 50, 32 kph. Calculate the flow in veh/hr. the final answer is 620.6897
Traffic on a freeway gives a Greenshield's traffic flow relationship expressed as: Q = 60k-0.16667k? At 10AM, an accident occurs 4 km downstream of an access ramp. The vehicles pull onto the shoulder of the roadway, but traffic passing the accident area slows to 10 kph as drivers survey the damage on the side of the road. A patrol car enters the freeway via access ramp, also at 10AM. Upon entering the freeway, the patrol car notes that traffic on the freeway is moving along at about 40 kph. Determine the following: 1. Capacity flow of the highway 2. Traffic shockwave created by the road accident 3. Time in AM the patrol car will reach the accident zone 4. Plotted traffic shockwave line in the Q-k traffic model diagram
1.) From the traffic studies performed along a street shows the distances each vehicle traveled every 3 seconds on a portion of the highway. Vehicle Distance, m 1 82.6 2 89.9 3 84.6 4 82 a.compute the space mean speed of the traffic, in kph.b.compute the flow of traffic.c.compute the density of traffic.
Car A is traveling at a location where the speed limit is 100 km/h. The police officer in car P observes this speed via radar. The driver of car A is traveling at vÃ = 122 km/h as it passes P, but over the next 4.1 seconds, the car uniformly decelerates to the speed limit of 100 km/h, and after that the speed limit is maintained. At the moment when A passes P, the police car begins to accelerate at the constant rate of 4.0 m/s² until a speed of 164 km/h is achieved, and that speed is then maintained. Determine the distance s required for the police officer to overtake car A. Answer: s= i VA 248.52 P m
Calculate safe overtaking sight distance for a two way traffic road for the following data. The speed of overtaking and overtaken vehicles are 50and 40kmph respectively. The acceleration is 3kmph/sec, design speed is 60 kmph and reaction time is 2seconds.
A Car rounds a 100-m radius curve at a constant speed of 60 kph. Which of the following statements is/are TRUE considering its motion on the curve path? Select ALL possible answers. O The car has a tangential acceleration. The car has a normal acceleration directed towards the center of the curved path. O The car has a normal acceleration directed away from the center of the curved path. The car has no tangential acceleration. The velocity of the car changes at any instant. O none of these
Car A is moving with constant speed v on the straight and level highway. The police officer in the stationary car Pattempts to measure the speed v with radar. If the radar measures "line-of sight" velocity, what velocity v' will the officer observe? Evaluate your general expression for the values v = 78 mi/hr, L= 480 ft, and D = 17 ft, and draw any appropriate conclusions. O Answer: v' = L P mi/hr