PHY216 Exam #2 Part 1 6) The Bernoulli effect is responsible for the lift force

Question

PHY216 Exam #2 Part 1 6) The Bernoulli effect is responsible for the lift force on an airplane wing. Wings must (2pts) therefore be designed so as to insure that air molecules will be deflected upward when they hit the wing air molecules move more rapidly past the upper surface of the wing than past the lower surface air molecules move more rapidly past the lower surface of the wing than past the upper surface wings are thick enough to create a cant pressuredif rence between the top and bottom surfaces of the wings because of the different heights of these surfaces air molecules will be denected downward when they hit the wing 4 Previous 112131415161718191 10 MAIN: 4100 South Stj KS 66048 ; 2441-5121

Explanation / Answer

Air molecules move more rapidly past the upper surface of the wing than past the lower surface

Reason: From Bernoullis Principle, P+ 1/2 pV^2 = Constant. Therefore, in order to create Lift, Pressure at the lower surface should be more than the upper surface, which is poosible if velocity of air molecules is more at the upper surface than the lower surface

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.