In traveling a distance of 4.2 km between points A and D, a car is driven at 91 km/h from A to B for t seconds and 47 km/h from C to D also for t seconds. If the brakes are applied for 3.7 seconds between B and C to give the car a uniform deceleration, calculate t and the distance s between A and B.

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter1: Introduction To Statics
Section: Chapter Questions
Problem 1.19P: Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of...
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In traveling a distance of 4.2 km between points A and D, a car is driven at 91 km/h from A to B for t seconds and 47 km/h from C to D
also for t seconds. If the brakes are applied for 3.7 seconds between B and C to give the car a uniform deceleration, calculate t and the
distance s between A and B.
91 km/h
47 km/h
B
C
4.2 km
Answers:
t =
S =
i
km
Transcribed Image Text:In traveling a distance of 4.2 km between points A and D, a car is driven at 91 km/h from A to B for t seconds and 47 km/h from C to D also for t seconds. If the brakes are applied for 3.7 seconds between B and C to give the car a uniform deceleration, calculate t and the distance s between A and B. 91 km/h 47 km/h B C 4.2 km Answers: t = S = i km
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