subway Q3/A subway traveling at 40 km/hr decelerates as it reaches point A and slows down with a constant deceleration. Its reduced velocity is noted to be 30 km/hr as it passes point C. A vehicle which is moving at 25 km/hr passes point B at the same instant that the subway reaches point A. In an unwise effort to beat the subway to the crossing, the driver "steps on the gas." (a) Calculate the constant acceleration Car dansi4 21 a that the car must have in order to beat subway to the crossing by 2 sec and (b) find the velocity 22 of the car as it reaches the crossing | 0.5 km C 0.5 km B 1.3 km

subway Q3/A subway traveling at 40 km/hr decelerates as it reaches point A and slows down with a constant deceleration. Its reduced velocity is noted to be 30 km/hr as it passes point C. A vehicle which is moving at 25 km/hr passes point B at the same instant that the subway reaches point A. In an unwise effort to beat the subway to the crossing, the driver "steps on the gas." (a) Calculate the constant acceleration Car dansi4 21 a that the car must have in order to beat subway to the crossing by 2 sec and (b) find the velocity 22 of the car as it reaches the crossing | 0.5 km C 0.5 km B 1.3 km

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Q3/A subway traveling at 40 km/hr decelerates as it reaches point A and slows down with a constant deceleration. Its reduced velocity is noted to be 30 km/hr as it passes point C. A vehicle which is moving at 25 km/hr passes point B at the same instant that the subway reaches point A. In an unwise effort to beat the subway to the crossing, the driver "steps on the gas." (a) Car Calculate the constant accelerations a that the car must have in order to beat subway to the crossing by 2 sec and (b) find the velocity v of the car as it reaches the crossing. E ALSHIBQAT subway A C 0.5 km 10.5 km ‒‒‒‒‒‒‒‒‒‒‒‒‒ B 1.3 km
QUESTION 13 60 10 15-min Volumes Y 75 40 Lane Configurations SUCP What is the movement capacity of the left turn from the main street if the potential capacity is 1,238 veh/h?
A rail transit system has prescribed the following factors:1. Peak hour demand = 30000 passengers/hr2. Minimum required speed = 55 ft/sec3. Deceleration = 3 ft/sec24. Safety factor = 1.455. Vehicle length = 80 ft6. Allowable vehicle capacity = 150 pass/veh7. Guideway utilization factor = 0.838. Minimum headway = 110 secHow many cars should the train consist of to provide adequate passenger capacity?
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D. There are 10 vehicles observed in a 450 m length of Aurora Boulevard. If the average time headway is 5 sec. calculate the space mean speed in kph
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The freeway speed for a 40 foot long vehicle that spends 1.5 seconds occupying a 6 foot radius, approximately circular loop is .... ...... 34.7 ft/sec 27ft /sec 22 ft/sec O 30 ft/sec
Cars A and B are traveling in the same direction at the same speed of 25 kph along a level road with Car A 100 meters ahead of car B. Car A decelerate at 2 m/sec². From this instance up to the time Car B overtakes (meets) Car A, how far Car A has traveled?
Q4: a. At a certain at grade intersection, it's decided to use a 4 phases traffic signal for the four approaches shown below. South Approach Width (m) Actual flow (DHV) pe/hr North East West 7 8 12 10.5 331 427 1104 715 Left turn vehicles of 478 630 1953 1047 saturation flow Assuming the following for each phase: Starting delay and falling discharge time = 3 sec, amber time = 5 sec, all red = 1 sec, red/amber I sec. Find the optimum cycle time and the controller green for each phase.
A car travels from A to B at an average speed of 80 kph and back to A without loss of time at an average speed of 100 kph. Determine the average speed for the entire trip. A) 9.88 kph B 9.89 kph 98.98 kph 88.89 kph E o kph