A highway curve of radius 68.0 m is banked at 21.4 degree so that a car...

Question

Question

science physics

Answer 1

Answer #1

Given

R = 68 m

theta = 21.4

speed v = 26.4 m/s

from the relation

tan(theta) = (v^2 -( mue * R * g)) / (mue *v^2 + (R * g))

tan(21.4) = (26.4^2 -(mue * 68 * 9.8)) / ( mue * 26.4^2 + (68 * 9.8))

mue = 0.46

Add a comment

Answer 2

Similar Homework Help Questions

A curve of radius 70 m is banked so that a 1000 kg car traveling at...

A curve of radius 70 m is banked so that a 1000 kg car traveling at 60 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. The acceleration of gravity is 9.81 m/s 2 . a) Find the minimum speed at which a car can travel around this curve without skidding if the coefficient of static friction between the road and the tires is 0.2 b) Find the maximum...
A car rounds a curve that is banked inward. The radius of curvature of the road...

A car rounds a curve that is banked inward. The radius of curvature of the road is R = 140 m, the banking angle is θ = 26°, and the coefficient of static friction is μs = 0.39. Find the minimum speed that the car can have without slipping. A car rounds a curve that is banked inward. The radius of curvature of the road is R 140 m, the banking angle is 26e, and the coefficient of static minimum...
Suppose that a particular highway offramp with a curve radius of 56 m is banked at...

Suppose that a particular highway offramp with a curve radius of 56 m is banked at 10˚ and was originally designed to include a coefficient of static friction of 0.25 between tires and road. If the DoT wants to repost the speed limit so that the curve is correctly banked when including a friction coefficient of only 0.1, what new speed should be posted?

A car is driving around a banked curve, with the road surface at an angle of...

A car is driving around a banked curve, with the road surface at an angle of 10.0º. If the radius of curvature of the road is 30.0 m and the coefficient of static friction between the tires of the car and the road is 0.65, what is the maximum speed (in km/hr) the car can go without skidding?
A car of mass M = 800 kg traveling at 55.0 km/hour enters a banked turn...

A car of mass M = 800 kg traveling at 55.0 km/hour enters a banked turn covered with ice. The road is banked at an angle ?, and there is no friction between the road and the car's tires as shown in(Figure 1) . Use g = 9.80 m/s2 throughout this problem. Now, suppose that the curve is level (?=0) and that the ice has melted, so that there is a coefficient of static friction ? between the road and...
A car of mass M = 1300 kg traveling at 65.0 km/hour enters a banked turn...

A car of mass M = 1300 kg traveling at 65.0 km/hour enters a banked turn covered with ice. The road is banked at an angle θ, and there is no friction between the road and the car's tires as shown in (Figure 1) . Use g = 9.80 m/s2 throughout this problem. r= 91.43 m. Now, suppose that the curve is level (θ=0) and that the ice has melted, so that there is a coefficient of static friction μ...

A concrete highway curve of radius 70.0 m is banked at an 11 degree angle. What...

A concrete highway curve of radius 70.0 m is banked at an 11 degree angle. What is the maximum speed with which a 1200 kg rubber-tired car can take this curve without sliding? (Take the static coefficient of friction of rubber on concrete to be 1.0.)
A car rounds a curve that is banked inward. The radius of curvature of the road...

A car rounds a curve that is banked inward. The radius of curvature of the road is R = 152 m, the banking angle is θ = 32°, and the coefficient of static friction is μs = 0.23. Find the minimum speed that the car can have without slipping.
The radius of curvature of a highway exit is r = 49.5 m. The surface of...

The radius of curvature of a highway exit is r = 49.5 m. The surface of the exit road is horizontal, not banked What is the minimum required value of the coefficient of static friction between the tires of the car and the surface of the road so that the car can safely exit the highway at a constant speed of 42.0 km/h without sliding?

PLEASE ANSWER PART B. THANKS! t Banked Frictionless Curve, and Flat Curve with Friction A car...

PLEASE ANSWER PART B. THANKS! t Banked Frictionless Curve, and Flat Curve with Friction A car of mass M 1500 kg traveling at 45.0 km/hour enters a banked turn covered with ice. The road is banked at an angle 6, and there is no friction between the road and the car's tires as shown in (Figure 1). Use g 9.80 m/s2 throughout this problem. of 2 Figure 1 Part A What is the radius r of the turn if 0...