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
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
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Answer:
A
Step-by-step explanation:
w=kav
225= k(40)(25)
225= 1000k
k=9/40
w=9/40av
180=9/40(80)(v)
180=18v
v=10 miles per hour
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