Answer
$6.7s$
Work Step by Step
Net velocity with respect to the ground =$1+0.5=1.5m/s$
So, the shopper will be in the next floor in $\frac{10}{1.5}=6.7s$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 3 - Motion in Two Dimensions - Learning Path Questions and Exercises - Exercises - Page 101: 69
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