SOLUTION: The force required to keep a 2000lb car going 30mph from skidding on a curve, where r is the radius of the curve in feet, is given by the following formula F(r)= 225,000/r A)

Algebra ->  Equations -> SOLUTION: The force required to keep a 2000lb car going 30mph from skidding on a curve, where r is the radius of the curve in feet, is given by the following formula F(r)= 225,000/r A)       Log On


   

Question 1085678: The force required to keep a 2000lb car going 30mph from skidding on a curve, where r is the radius of the curve in feet, is given by the following formula
F(r)= 225,000/r
A) what radius must a curve have if a force of 450lb is needed to keep the car from skidding?
B) as the radius of the curve is lengthened, how is the force affected?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A)225000%2Fr=4500
r=225000%2F4500
.
.
B) F=225000%2Fr
As r increases, F decreases proportionally since they're inversely proportional.