SOLUTION: The force of the wind blowing on a vertical surface varies jointly as the area of the surface and the square of the velocity. If a wind blowing at 40 km/h exerts a force of 50 N o

Question 1130887: The force of the wind blowing on a vertical surface varies jointly as the area of the surface
and the square of the velocity. If a wind blowing at 40 km/h exerts a force of 50 N on a
surface of 500 m2, how much force will a wind of 80 km/h place on a surface of 2 m2?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
F, force
A, area
v, velocity
k, variation constant

-

-

Answer by ikleyn(52814)   (Show Source): You can put this solution on YOUR website!
.

            The solution by @josgarithmetic is   T O T A L L Y   W R O N G   and does not follow the problem condition.

            So I came to bring a correct solution, which is below.

F, force A, area v, velocity k, variation constant F = k = k = k = k = - F = = = 0.8 N. ANSWER

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By the way, are you familiar with the conception commonly accepted between educated and civilized people to thank after getting help ?

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