Question

The downward force produced when air flows over the winglike spoiler on a race car is an example of ___ principle

Answer 1

As per bernoulli's principle

$P_1 + \frac{1}{2}\rho v_1^2 = P_2 + \frac{1}{2}\rho v_2^2$

here

$P_1$ = pressure upwards

$P_2$ = pressure downwards

$v_1$ = velocity of air upwards

$v_2$ = velocity of air downwards

now from this equation we can say that the pressure difference will be

$P_1 - P_2 = \frac{1}{2}\rho v_2^2 - \frac{1}{2}\rho v_1^2$

now the force due to this pressure difference will be

$F = (P_1 - P_2)A$

so this is the above force which is given above

Answer 2

Bernoulli's Principle