Questions
A person walks up a stalled long escalator in . When standing on the same escalator now moving, the person is carried up in . How much time would it take that person to walk up the moving escalator? . Does the answer depend on the length of the escalator?
detailed solution
Correct option is D
v1= speed of person v2= speed of escalator v1=1t1 and v2=1t2 ∴ t=1v1+v2=11t1+1t2 =t1t2t1+t2=90×6090+60=36 sTalk to our academic expert!
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