College math
posted by Shin .
Highwq curves. If a circular curve without any banking has a radius of R feet, the speed limit L in miles per hour is L = 1.5 aqrt(R)
(a) Find the speed limit for a curve having a radius of 400 feet.
(b). If the radius of a curve doubles, what happens to the speed limit?
(c.) A curve with a 40mileperhour speed limit is being designed .What should be its radius?

College math 
bobpursley
What is your thinking? I will be happy to critique your thinking.
Respond to this Question
Similar Questions

PHYSICS
A circular curve of highway with radius 200m is designed for traffic moving at 100km/h, and is banked so that cars can make the curve even without friction at that speed. What is the correct angle of banking for this curve? 
College math
Highway curves If a circular curve without any banking has a radius of R feet, the speed limitL.in miles per hour for the curve is L=1.5 R. (a.)Find the speed limit for a curve having a radius of 400 feet. (b.) If the radius of a curve … 
College Math
1. The posted speed limit on many US highways is 65 miles per hour. What is this speed in feet per second? 
college math
the posted speed limit on many U. S. Highway is 65 miles per hour. What is this speed in feet per second? 
college math
the speed limit on a local highway is 65 miles per hour. what is this speed in km/hr 
Math
A truck tire with a diameter of 36 in is rolling over level ground spinning at 11 rotations/second. If the speed limit is 55 miles per hour and the penalty is $20 per hour over the speed limit, should the driver be fined and if so, … 
College Math
The posted speed limit on many U.S. highways is 65 miles per hour. What is this speed in feet per second? 
math Help ASAP
write and solve inequality 17. the speed limit of a highway is 55 miles per hour. a car is traveling at least 65 miles per hour. how many miles per hour m over the speed limit is the car traveling? 
physics!!!
The speed limit around a curve of radius 85 meters is 30 miles per hour. What angle should the curve be banked at if a car is to be able to go around the curve at that speed with no friction? 
Algebra Readiness
Write and solve inequality. 17. The speed limit of a highway is 55 miles per hour. A car is traveling at least 65 miles per hour. How many miles per hour m over the speed limit is the cart traveling?