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JEE Main 2014 Physics question

PhysicsMotion in a PlaneJEE Main 2014

A person climbs up a stalled escalator in 60 s. If standing on the same but escalator running with constant velocity he takes 40 s. How much time is taken by the person to walk up the moving escalator?

Answer: (3)

Solution

Let the escalator length be L. Walking speed and escalator speed . Walking up the moving escalator

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Question ID VK-104526