Help please! Not understanding word problems very well.

Question

Atmospheric drag varies jointly as an​ object's surface area A and its velocity v. If a car travelling at a velocity of

7070

mph with a surface area of

44.744.7

ftsquared2

experiences a drag of

150150

​N, how fast must a car with

37.937.9

ftsquared2

of surface area go to experience

419419

N of​ drag?

Answer 1

d = Avk

150 = (44.7)(70)k

150 = 3129k

0.0479 ≈ k

419 = (37.9)v(0.0479)

Can you calculate for v and answer?