15. Wind resistance varies jointly as an object's surface area and velocity and
traveling at 40 miles per hour with surface area of 25 square feet experience a wind resistance of zas
Newtons. how fast must a car with 80 square feet of surface area travel in order to experience on
resistance of 180 newton?

a Velocity = 10 miles per hour
c. Velocity = 30 miles per hour
b. Velocity = 25 miles per hour
d. Velocity = 5 miles per hour​