Answered

Wind resistance varies jointly as an object's surface area and velocity. If an object
traveling at 40 mile per hour with a surface area of 25 square feet experiences a wind
resistance of 225 Newtons, how fast must a car with 40 square feet of surface area travel
in order to experience a wind resistance of 270 Newtons?

Sagot :

Victoriasy85viz

Answer:

30 miles per hour

Step-by-step explanation:

w=kav

225= k(40)(25)

225=1000k

k= 9/40

w=9/40av

270=9/40(40)(v)

270=9v

v= 30 miles per hour

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