SOLUTION: A child is running on a moving sidewalk in an airport. When he runs against the sidewalk's motion, he travels 40ft in 10 seconds. When he runs with the sidewalks motion, he travels
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Question 1077238: A child is running on a moving sidewalk in an airport. When he runs against the sidewalk's motion, he travels 40ft in 10 seconds. When he runs with the sidewalks motion, he travels 120ft in the same amount of time. What is the rate of the child on a still sidewalk and what is the rate of the of the moving sidewalk? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! 4 feet per second = speed-walk or s-w
12 feet per second=speed+walk or s+w
2s=16
s=8 ft/sec child
w=4 ft/sec walkway
