Answered: A car's speed increases uniformly from…

A car's speed increases uniformly from 15 kph to 60 kph in twenty seconds. Solve for the (a) average speed (b) distance travelled (c) acceleration (answer should

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter3: Characteristics Of The Driver, The Pedestrian, The Bicyclist, The Vehicle, and The Road

Section: Chapter Questions

Problem 10P

See similar textbooks

Related questions

Q: PROBLEM 1: Travelling with an initial speed of 70 km/hr, a car accelerates at 6000 km/hr² along a…

A: Answer We are given Initial speed u = 70 Km/hr Final speed v = 120 km/hr Car acceleration a = 6000…

Q: Q21 the car start from rest and has a V-t graph as shown below. Construct the S+t graph and find the…

Q: The pilot of a jet transport brings the engines to full takeoff power before releasing the brakes as…

A: The problem is constant acceleration model. So, use kinematic equation of motion to solve the…

Q: A car travels along a straight road with velocity described by the graph. Construct the s-t and a-t…

Q: The dragster starts from rest and has an acceleration described hy the graph. Construct the v-t…

Q: The diameters of pipe are changed from 35 cm to 20 cm as shown in figure, the pipe length is 100 cm.…

Q: Situation 3: For the next three questions, consider the following: A driver traveling at 50 mph is…

Q: A car achieved a speed of 96.160 km/hr in 25 seconds after accelerating from a speed of 13 km/hr.…

Q: The acceleration record shown was obtained during the speed trials of a sports car. Knowing that the…

A: It can be solved using newton law of motion.

Q: Referring to the following diagram, what is the maximum constant velocity the automobile could…

Q: During a brake test, the rear-engine car is stopped from an initial speed of 93 km/h in a distance…

Q: By itself, the 2400-kg pickup truck executes a 0-86 km/h acceleration run in 10.7 s along a level…

A: Given that m1 = 2400kg , m2 =570kg U =0 km/h V = 86km/h V =863.6=23.89 m/s t = 10.7 sec V =U +at…

Q: 4) The frontal surface area of a cyclist has been measured as 0.8 m². Knowing that the coefficient…

A: Given data v = 40 km/h = 11.12 m/s p = 1.29 kg/m^3 CD = 0.6 A = 0.8 m^2 To Find :- horizontal force…

Q: The angular acceleration of a flywheel decreases uniformly from 9 rad per sec² to 3 rad per sec² in…

Q: Activity 1. An automobile has a speed of 90 km/hr when the brakes are applied. The car is slowed…

A: Given data, Initial speed u = 90km/hr = (90×5)/18 = 25m/s final speed,v =0,…

Q: A body of mass 5 slugs is dropped from a height of 240 ft with zero velocity. Assuming no air…

Q: You are riding home from a party and the driver is drunk. The car is traveling at 60 mi/hr.…

A: Given-Speed v=60 mi/hrReaction time t=1s

Q: A car travels at initial velocity of 11 m/min the first minute and accelerate at the rate of (a = 2…

Q: A car moving at a constant velocity of 45 fps passes a coffee shop. Three seconds later, another car…

A: To determine the time taken by the second car to overtake the first car. Let the car that passed…

Q: Question 3: A) A driver is traveling at an average speed of 40 kph when a person is crossing the…

A: Given DataV=40 kmpht=2 seca=5 m/sec2F=coefficient of friction=ag=59.81=0.51Now we know that…

Q: 1. A car is able to provide 300kW of tractive power, as it accelerates from 36 to 288km/hr, along a…

Q: A car moves according to the equation s = ut +1/2 at2, where s is the distance in meters , u is the…

Q: In a go-kart event, driver no. 5 as shown in Figure 3 starts at s = 0 and then drove with a velocity…

Q: Situation 1 An automobile moving at a constant velocity of 15 m/sec. passes a gasoline station. Two…

Q: A car starts from rest, and accelerates at a uniform rate to a velocity of 40 m/s in 15 secs. If the…

Q: A car starts from rest and accelerates to a speed of 90 km/h in 20 seconds. The acceleration during…

A: Given data: in acceleration u=0 kmph v=90 kmph t=20 s In De-acceleration : u=90 kmph v=0 kmph t=10…

Q: Part A Consider the car shown in (Figure 1). Suppose that y(x) = 24 10 000 m, where a is in m.…

Q: A body of mass 5 slugs is dropped from a height of 240 ft with zero velocity. Assuming no air…

A: Given height is in fts Take g = 32.2 ft/sec2 Initial velocity = 0 ft/sec

Q: Which car showed greatest acceleration going to right (horizontally)? H 100 N T 100 N 100 N 600 450…

A: The car having maximum horizontal resultant will have maximum acceleration.

Q: A boat has an initial speed of 12 ft/s . It then increases its speed along a circular path of radius…

Q: While travelling at a constant speed a driver saw a road block 112 m away. He applied the brakes and…

Q: An automobile travelling at 50 mi/h on a level road is stopped by sliding wheels. If the coefficient…

A: Initial velocity of an automobile, Coefficient of kinetic friction between tires and road,

Q: The brakes of a car are applied, causing it to slow down at a rate of 10 f/s. Knowing that the car…

A: Given Data : Deacceleration of car, ad = -10 ft/s2 Stopping distance, s = 300 ft To find : (a) Car…

Q: A vehicle moving at a speed of 80 Km/h is slowing traffic on a two-lane highway. What passing sight…

A: Passing sight distance: The shortest range is needed on a two-lane highway at any moment for…

Q: The driver of a car travelling at a certain speed suddenly seen an obstruction ahead and travelled a…

A: Determine the Car's speed approach in kph.

Q: A 2031 lb car starts from rest at point 1 and moves without friction down the track shown. Determine…

Q: The car is traveling along the road with a speed of v = (2 s) m/s, where s is in meters. Determine…

Q: E-EVEN: A motorist is travelling at 72km/hr when he observes that a traffic light ahead of him turns…

A: Determine a) the required uniform deceleration of the car in m/s^2 b) the speed of the car in m/s as…

Q: 16. A vehicle that is initially at rest accelerated at 10 km/hr^2 for one hour and then decelerated…

A: I am solving this question as it is part of mechanics.

Q: A car of mass 1.2 tonnes is traveling along a straight horizontal Road at a speed of 20 m/s when it…

A: Consider the free body diagram; Given; μ=0.8v0=20 m/s

Q: A sprinter (starting from rest) in a 150-m race accelerates uniformly for the first ** m and then…

A: The values given in the question are as follows Race length(L)=150 m Uniformly accelerate for the…

Q: A vehicle moving at a speed of 50 mph is slowing traffic on a two-lane highway. What passing sight…

A: calculation forD1 let us consider A vehicle where some slow moving vehicle ahead of it at constant…

Q: *1-8. If a car is traveling at 55 mi/h, determine its speed in kilometers per hour and meters per…

A: Given, Speed of car 55mi/h We have to find Speed in kilometres per hour and meters per second

Q: A boat has an initial speed of 12 ft/s . It then increases its speed along a circular path of radius…

Q: - Attempt All Questions 25 Q1) A train accelerates from rest to 30 Km/h in the first O.5 minute. (a)…

A: Given data- First Case- Train accelerates from rest-Initial velocityu=0 m/sFinal velocityv=30…

Q: By itself, the 2180-kg pickup truck executes a 0-102 km/h acceleration run in 11.6 s along a level…

Q: Vin Gasoline's Aston Martin has a spec of 0-100kph in 8.6 seconds. What is its acceleration?

Q: Car A is moving with constant speed v on the straight and level highway. The police officer in the…

Q: A 1030 kg car rounds a curve of radius 85 m banked at an angle of 5 degrees. If the car is traveling…

Q: A car is moving in a straight line has an acceleration as shown in the picture below: a) Determine…

A: Given the acceleration of a car moving in a straight line, a=t3+t+1t The velocity and distance…

Concept explainers

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.

Question

100%

A car's speed increases
uniformly from 15 kph to 60
kph in twenty seconds. Solve
for the (a) average speed (b)
distance travelled (c)
acceleration (answer should
be in mks)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Answer

VIEW

Step 2:

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

In some applications dealing with very high speeds, the velocity is measuredin mm/µs. Convert 25 mm/µs into (a) m/s; and (b) mi/h.
Three seconds after automobile B passes through the intersection shown, automobile A passes through the same intersection. Knowing that the speed of each automobile is constant, determine (a) the relative velocity of B with respect to A, (b) the change in position of B with respect to A during a 4-s interval, (c) the distance between the two automobiles 2 s after A has passed through the intersection.
The driver of a car travelling at a certain speed suddenly sees an obstruction ahead and travelled a distance of 55.8 m during the perception time of 1.45 sec. Determine the car's speed of approach in kph a.136.54 kph b.140.54 kph c.138.54 kph d.138.00 kph
Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. The car has a forward acceleration of a = 4.7 m/s2 without slipping its 630-millimeter diameter tires. Determine (a) the velocity (v) of the car when point P at the tire (corresponding to θ = 43° as shown) has zero horizontal component of acceleration. Also, compute for (b) the total acceleration at point P.NOTE: Use purely RMA Method for velocity and acceleration calculations.
The driver of a car travelling at a certain speed suddenly sees an obstruction ahead and travelled a distance of 55.8 m during the perception time of 1.45 sec. Determine the car's speed of approach in kph.
Car A is traveling at a constant speed vA = 127 km/h at a location where the speed limit is 100 km/h. The police officer in car P observes this speed via radar. At the moment when A passes P, the police car begins to accelerate at the constant rate of 5.0 m/s2 until a speed of 171 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.
A motorcycle patrolman starts from rest at A 2 sec. after a car speeding at the constant rate of 120 kph passes point A. If the patrolman accelerates at the rate of 6 m/s2 until he reaches his maximum permissible speed of 150 kph, which he maintains. a. Find the time for the patrolman to reach a maximum permissible speed of 150 kph. b. How long did it take the patrolman to overtake the car from the time he starts from A.? c. Calculate the distance S from point A to the point at which he overtakes the car.
An object travels from the origin along a curved path y=5x2/3. If its horizontal velocity is Vx=24t2 m/sec, where t is in seconds, determine the magnitude of its velocity, acceleration and distance from the origin at t=5sec.
Calculate the stopping sight distance on a highway at an ascending gradient 2% for a design speed of 90 kph with a total reaction time of 2.5 sec and a coefficient of 0.42.
Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. A motorist is about to enter the exit ramp of a highway. When it is 50m before reaching A (along the straight path), the motorist travels at 80km/h, decreasing at the rate of 0.5m/s2until it reaches B. After it reaches B, it travels at a constant speed. Determine the magnitude of the acceleration: just after A just before B just after B
A vehicle is moving along a straight line having an initial speed of 10 m/s. It is experiencing a deceleration of -0.5v2 m/s2 . Determine the distance travelled by the vehicle after three seconds.
Highway Engineering: A car with a speed of 50 mph will pass the bus with a speed of 40 mph. Determine the passing sight distance required while the third vehicle has a speed of 50 mph has been coming from the opposite direction. t1 = 3.6 secs, a = 2.25 km/hr/sec, t2 = 11.3 secs, and d3 = 30 m.