A test car starts from rest on a horizontal circular track of 85-m radius and increases its speed at a uniform rate to reach 115 km/h in 18 seconds. Determine the magnitude a of the total acceleration of the car 14 seconds after the start. 85 m Answer: a = i m/s2

A test car starts from rest on a horizontal circular track of 85-m radius and increases its speed at a uniform rate to reach 115 km/h in 18 seconds. Determine the magnitude a of the total acceleration of the car 14 seconds after the start. 85 m Answer: a = i m/s2

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

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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

A test car starts from rest on a horizontal circular track of 85-m radius and increases its speed at a
uniform rate to reach 115 km/h in 18 seconds. Determine the magnitude a of the total acceleration
of the car 14 seconds after the start.
85 m
Answer: a =
i
m/s2

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