Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 4 - Motion in Two and Three Dimensions - Questions: 9a

Answer

The time of the flight for all footballs is the same.

Work Step by Step

Starting from the same spot, each football travels up to the same height and then falls. The displacement in the x direction is irrelevant while determining the time of the flight. The Equation Vf=Vi+at shows how the the x direction displacement is not taken into account when determine flight duration.
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