A person walks up a stalled escalator in a department store in 90s. when standing still on the same escalator in motion, he is carried up in 60s
A) how much time would it take him to walk up the moving escalator?(36s)
B)Could he walk down the escalator while it was moving up? if so, how long would it take?
I spend 2 hours this evening trying to do these problems, but for these 2, I couldnt manage to even draw a proper diagram for ... For the last question, I tried to draw it, but the resultant vector wasn't matching with the answer, so obviously it was wrong...A pilot wishes to make flight of 300 km [NE] in 45 min. On checking with the meteorological office, she finds that there will be a wind of 80km/h from the north for the entire flight. What heading and air speed must she use for the flight? (52 N of E, 460 Km/h)