M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

Airfoils can generate lower pressures on their top surfaces than their bottom surfaces which lie at atmospheric pressure. This helps air on the bottom push the airfoil upwards. For a flying 500kg airfoil with an area of 20 m², what is the maximum pressure on its top surface? Assume air pressure is 100 kPa. 1 Pa = 1 N/m²

A

0 Pa

B

250 Pa

C

75000 Pa

D

99750 Pa