The driver speed affects the reaction time and less affect the perception time
Q: Problem 28: Compute the minimum time headway for cars moving at an average speed of 60 kph. The…
A: Given data, Average speed = 60 kph Average length of vehicle = 4.2 m Reaction time = 0.8 sec…
Q: The driver of a vehicle sees an object on a level road 150m in front of them and takes evasive…
A: Sight distance: The length of the road visible ahead to the driver from a specified height at any…
Q: 2/184 For the instant represented, car A is rounding th. circular curve at a constant speed of 30…
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Q: Th speeds of 25 cars were observed. 10 cars were noted to travel at 38 kph, 8 cars at 39 kph, 2 cars…
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Q: 6. A particle has an initial velocity of 100 fps up to the right at 30 with the horizontal. The…
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Q: Q6: Discuss briefly the following: 1. The difference between volume and rate of flow. 2. Time mean…
A: Solution: 1. Volume is defined as that liquid that flows into a pipe in a given amount of time.…
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A: Given, Speed of one fly = 0.7 m/s Speed of other fly = 0.5 m/s Angle between travel path = 85o…
Q: Activity 3 Questions At the instant shown, cars A and B are traveling with speeds of 18 m/s and 12…
A: Given data, VA = 18 m/s VB = 12 m/s Radius ρ = 100 m
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Q: 3. A moving vehicle come up to a danger and traveled a distance of 48 meters during the perception…
A: Stopping Sight Distance (SSD) is given by : SSD=0.278 V Tr + V2254(f±s%) Given SSD = 48m Tr = 2.67…
Q: At time t = 0, a particle is at rest in the x-y plane at the coordinates (xo, Yo) = (3,0) in. If the…
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Q: Question 3: In cylindrical polar coordinates (r, 0,z), the velocity components of a flow filed are…
A: Solution; Velocity Component, Vr=r2zcosθVθ=rzsinθVz=Z2t[r=0.5 m, Z=1 m, θ=π4]
Q: 1.REYNOLDS NUMBER is indicator of the nature of flow where flow consist of laminar or turbulent flow…
A: Brief concept- Reynold's Number (Re) - It is a dimensionless value that is used to determine the…
Q: A bus driver approaches a hazard at a speed of 70kph and travel at a distance of 48m during a given…
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Q: Q1: The center of mass G of a high jumper follows the trajectory shown. Determine the component vo,…
A: Solution Given Data H=1.06 m
Q: What do you mean by shockwave in traffic flow? Develop the expression for velocity of shockwave when…
A: Answer:- Shockwave: Traffic congestion and queueing are generate byproducts which is known as…
Q: From a point beside a road, a one way traffic stream is observed to consist of - A stream of cars…
A: The velocity of the car is vc=90 kmph The time headway for the car is hc=10 s. The velocity of the…
Q: 1. If the velocity distribution is uniform at section 1, what is the value of the Momentum flux…
A: Control Volume is a volume fixed in space or moving with constant velocity through which the fluid…
Q: At time t = 0, a particle is at rest in the x-y plane at the coordinates (xo, Yo) = (6, 0) in. If…
A: ax=d2xdt2=0.71-0.49tparticle start at rest so at t=0,…
Q: Car B is traveling a distance d ahead of car A. Both cars are raveling at 60 ft/s when the driver of…
A: Stopping sight distance is the sufficient length to stop the vehicle safely without collision. SSD=…
Q: 1. A particle traveling in a straight line starts from rest it has an acceleration of a=B³t2+ct, if…
A: Step 1
Q: Car B is traveling a distance dahead of car A. Both cars are traveling at 60 ft/s when the driver of…
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Q: The breaks are set on a train running at 30 mi/hr., when ½ miles from a station. The train slows…
A: Solution Given Data Train speed u= 30 mi/hr Distance travel s= 1/2 miles
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A: Givenan for P1 = 29 m/sat for P2 = 47 m/s2ρ1= 0.116 m = radius of carvature path with point P1ρ2 =…
Q: Car A is traveling at a constant speed vA = 125 km/h at a location where the speed limit is 100…
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Q: Two objects A and B flies towards each other. When the distance between them is 1.2km their…
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Q: In a game of billiards, ball A is moving with a velocity V. = (2.5 m/sec)i when it strikes ball B…
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Q: Car A is traveling at a constant speed vA = 123 km/h at a location where the speed limit is 100…
A: a=5.6m/s2 VA =123kmph
Q: Determine the moment of inertia of the shaded area about the axis.
A: To determine the Moment Of Inertia of the given shaded area about y-axis. Given, Dimension a = 140…
Q: 1. The snowmobile moves along a straight course according to the v-t graph. Construct the s-t and…
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Q: The acceleration of a car is given by a = [ (3t^3 + 4t)i + 6tj + (8t – 5)k ] m/s^2. Determine the…
A: To determine the velocity of the car at given time. Given, a→=3t3+4t i +6t j + 8t-5 k m/s2 At time…
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Q: A car driver, after realizing an obstruction, stepped on the brakes and travelled 50m during the…
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Q: An engineering student is driving on a level roadway and sees a construction sign 600 feet ahead in…
A: Using stopping sight distance
Q: 5. In the inverted U-tube Differential manometer, how is the specific gravity of manometric fluid…
A: Given data in question Differential Manometer U tube manometer Manometric fluid To find out…
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A: accident study A moving vehicle collide with the any parked vehicle A moving vehicle collides…
Q: Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver…
A: Given :
Q: 2. The driver of a car travelling at a certain speed suddenly sees an obstruction ahead and…
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Q: A motorist is travelling at 72km/hr when he observes that a traffic light ahead of him turns red.…
A: The answer is found to be Deceleration a=-04958 m/s^2 Velocity at traffic light v=9.0924 m/s For…
Q: WA driver is travelling at 60 kph on asphalt road. An object is stopped on the road 264 ft a head…
A: Given Speed = 60 Kph Stopping sight distance= 264 ft note 1 ft= 3.281 m
Q: It was observed that a tennis ball when served horizontally 7.5 ft above the ground strikes the…
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Q: road block 112 m away. He applied the brakes and the car decelerated uniformly at 6.4 m/s^2. It…
A: Hello dear this is the solution of your problem The answer is found to be Initial Speed of vehicle…
Q: Determine the coefficient of restitution e between ball A and ball B. The velocities of A and B…
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Q: 9.An alert driver (with a reaction time 0.5 second) is driving uphill on a 4% grade at 36 km/h on a…
A: The stopping sight distance of the vehicle is equal to the sum of lag distance and brake distance.…
Q: A particle travels along a straight line with a velocity of v = (4t - 3t?) m/s, where t is in…
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Q: and 3. The flow at upstream is still lower than bottleneck capacity the speed density 4. Macroscopic…
A: To describe the traffic, there are different types of the parameters. These parameters describe…
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Q: In flow past a body or wall, early transition to turbulencecan be induced by placing a tripwire on…
A: Given data: Trigger turbulence Udν=850 Sphare diameter (D) = 20 cm = 200 mm ReD = 90,000
Q: 4 - When flow velocity increases, it alters the shape of the flow velocity profile. Clarify
A: Hi! Thank you for the question. As per the honour code, we’ll answer the first question since the…
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- A car driver travelling at a speed of 65mph approach a hazard and traveled 72.2m. during the perception-reaction time. What was the drivers PIEV (perception, identification, emotion and volition) time in seconds.Aloha! This question I'm stuck on in my class. COuld you help? A driver traveling North on a two-lane two-way highway is performing apassing maneuver (i.e., using the opposing traffic lane) at a speed of v1 = 100 km/h on a sectionof the road with a grade G1 = 4%. Her perception-reaction time is tr1 = 1.0 s and her car canperform the stopping maneuver with a friction coefficient f1 = 0.35 (assuming, for example, worntires). The driver of another car traveling South at a speed v2 = 90 km/h has a perception-reactiontime tr2 = 1.3 s. Since the tires of this vehicle, which is traveling on a grade G2 = -4.0%, are ingood condition, they can develop a coefficient of friction f2 = 0.52. The two vehicles becomevisible to one another at the same time, when they are separated by a distance X = 200 m, measuredfrom front bumper to front bumper (See sketch below). Recall that g = 9.81 m/s2and that 3.6 km/h= 1 m/s.Assuming that the only alternative for the two drivers to avoid a collision is to…The driver of a vehicle is following another vehicle in front of her on a two-lane highway at night. She keeps a clearance of one car length for every 4 mph of speed while she follows the lead car. However, while going downhill at 56 mph, the lead car crashes into the rear of an unlighted abandoned truck. At what speed will her car hit the wreckage? Assume a perception-reaction time is 2 seconds, a deceleration rate of 11.2 feet/sec2, the length of cars of 18 feet, and the road grade as 3%.
- Th speeds of 25 cars were observed. 10 cars were noted to travel at 38 kph, 8 cars at 39 kph, 2 cars at 56 kph, and 5 cars at 41 kph. Assume that each car was traveling at a at constant speed. a. Determine the time mean speed in kph. b. Determine the space mean speed in kph.Traffic flow on a single lane road is moving with a free flow speed of 40 kph anddensity of 50 vpk. This flow is stopped for 45 seconds at an intersection controlled by signals. Assume jam density of 250 vpk.i. What would be the speed and direction of the stopping wave? ii. What would be the length of the cars stopped? SHOW COMPLETE SOLUTION. NEED ASAP. THNAK YOUAn airliner arrives at the terminal, and its engines are shut off. The rotor of has an initial clockwise angular speed of 2 000 rad/s. The engine’s rotation slows with an angular acceleration of magnitude 80.0 rad/s2. (a) Determine the angular speed after 10.0 s. (b) How long does it take for the rotor to come to rest?
- An ESP is treating the flue gas from a coal combustion unit and achieving a 98% PM removal efficiency. They start burning a new coal and the efficiency drops to 93%, but the gas flow rate has remained exactly the same. Estimate the ratio of the new effective drift velocity to the old onea. 0.50b. 0.68e. 0.77d. 0.84Need within 1hr pls, thanks A cylinder rolls without slipping at such instant. it has velocity of 2 m/s from center and acceleration of 3.5 m/s^2 Radius is 0.8 m. determine the position of the instantaneous center of zero velocity.VERY URGENT!!! The distance between stations A and B on a railway route is 40 km andelevation difference is 400 meters. The total length of the line segment between these two stations is 5 km.There are tunnels with a radius of 1400 meters and tunnels with a total length of 2 km. tunnel andThis slope is detrimental for a train going down the slope at 100 km/h in a section where the victim overlaps.Is it harmless? Tunnel resistance 3 kg/t, curve resistance 700/R kg/t, straight and straightresistance wo = 2 + (V2/ 4000) kg/t.
- To automobiles are 150 k/m apart and traveling toward each other.One automobile is moving at 60km/h and the other is moving at 40km/h mph.In how many hours will they meet?the front of a 5m long bus travelling at a constant rate of 20 m/s is 55 m away from an intersection, when the traffic light turns orange. It will take 3s before the traffic late turns red. The driver's reaction time is 0.25s. The bus can accelerate up to 2m/s2 or slow down at a maximum rate of 4.3 m/s2. The intersection is 22m wide. should the driver step on the brakes or on the gas pedal? Show computational proofTraffic flow on a single lane road is moving with a free flow speed of 40 kph and density of 50 vpk. This flow is stopped for 45 seconds at an intersection controlled by signals. Assume jam density of 250 vpk. i. What would be the speed and direction of the stopping wave? ii. What would be the length of the cars stopped? Show complete solution. need ASAP. THANK YOU