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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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I'm having trouble solving for c and d. The answer key says: c.) 71.7 m and d.) 228.5 m

Transcribed Image Text:Problem 5. A subway train starts from rest at a station and accelerates at a rate of 1.6 m/s² for 14
s. It then slows down at a rate of 3.5 m/s² until it stops at the next station. (a) Find the distance
the train goes while accelerating. (b) What is the maximum speed the train reaches? (c) How far
does the train travel while decelerating? (d) What is the distance between the two stations? (e)
Plot x(t), v(t) and a(t).
a.) (x ) == xo +Vot + á mata
(x) == 0 +0++ == (1.6) 142
(x) t = =√√ (1.6) 14 ²
2
2
(x) t = 156.8m
b.) 1.6 m/s * 145 = 22.4m/s
Vmax = 22.4 m/s
(.)
d.)
Expert Solution
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