Answer
Positive x-axis
Work Step by Step
The direction of the final velocity is along the x-axis (time) and its value is positive which means the direction of travel is also along with the positive x-axis
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 5 - Force and Motion-I - Problems - Page 121: 63b
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