SOLUTION: the stopping distance,s, of a car varies directly as the squrare of its speed, v. If a car traveling 60mph rquires 220 ft. to stop, what is the stopping distance for a car travelin
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: the stopping distance,s, of a car varies directly as the squrare of its speed, v. If a car traveling 60mph rquires 220 ft. to stop, what is the stopping distance for a car travelin
Log On
Question 743502: the stopping distance,s, of a car varies directly as the squrare of its speed, v. If a car traveling 60mph rquires 220 ft. to stop, what is the stopping distance for a car traveling 30 mph. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! the stopping distance,s, of a car varies directly as the square of its speed, v.
If a car traveling 60mph requires 220 ft. to stop,what is the stopping distance for a car traveling 30 mph.
:
let s = stopping distance at 30mph, write a ratio equation = =
Reduce fraction =
cross multiply
4s = 220
s = 220/4
s = 55 ft to stop at 30 mph
