Question

The window has a surface of 1.5 m2, the compartment has a volume of 12 m3, the train speeds 80 km / h to the west, the south wind blowing at 5 m / s. How quickly will the space be refreshed

Answer 1

Depends on which side window. And how much open. If rt side north window. Train vel 80 km.hr is 22 m/s. 22x1.5msq=33cubic m/s vol is 12 cu mt. So 2.75/sec...it will blow the hair and the students pants off... Either way the student will loose his socks