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Solved: A “moving sidewalk” in an airport terminal moves
Chapter 3, Problem 31E(choose chapter or problem)
A “moving sidewalk” in an airport terminal building moves at 1.0 m/s and is 35.0 m long. If a woman steps on at one end and walks at 1.5 m/s relative to the moving sidewalk, how much time does she require to reach the opposite end if she walks (a) in the same direction the sidewalk is moving? (b) In the opposite direction?
Questions & Answers
QUESTION:
A “moving sidewalk” in an airport terminal building moves at 1.0 m/s and is 35.0 m long. If a woman steps on at one end and walks at 1.5 m/s relative to the moving sidewalk, how much time does she require to reach the opposite end if she walks (a) in the same direction the sidewalk is moving? (b) In the opposite direction?
ANSWER:Solution 31E
Step 1:
Given data
Length of moving sidewalk (l) = 35 m
Speed (v) = 1 m/s
Speed of a woman () = 1.5 m/s
Problem (a)
Time taken her to reach the other end if she walks along the same direction on it
Step 1:
Relative speed =+v
= 1.5+1
= 2.5 m/s