Gloryreak4200 Gloryreak4200

26-04-2024
Physics

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A person climbs up a stalled escalator in 60 seconds. If standing on the same escalator running with a constant velocity, he takes 40 seconds. How much longer would it take for the person to reach the top if the escalator stopped moving?
a) 20 seconds
b) 30 seconds
c) 40 seconds

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