In air foil lift is __________ proportional to angle of attack.
A. inversly
B. not related
C. directly
D. none
Answer:A
In air foil lift is __________ proportional to angle of attack.
A. inversly B. not related C. directly D. none
Explanation: In air foil lift is directly proportional to angle of attack. If angle of attack is increased its lift is increased.