Static friction, car going around a turn

AI Thread Summary
To determine the speed at which a car is on the verge of sliding while rounding a curve, the coefficient of static friction is crucial. Given a coefficient of 0.60 and a curve radius of 30.5 meters, the static friction force can be equated to the centripetal force required for circular motion. The relationship between these forces is expressed as F_friction = μmg and F_centripetal = mv^2/r. By solving these equations, one can find the maximum speed before sliding occurs. Understanding the interplay between friction and centripetal force is essential for solving this problem.
mmiller9913
Messages
13
Reaction score
0

Homework Statement



Suppose the coefficient of static friction between the road and the tires on a car is .60 and the car has no negative lift. What speed will put the car on the verge of sliding as it rounds a level curve 30.5m in radius.

Homework Equations


A=V^2/R
F=MV^2/R


The Attempt at a Solution


I've stared at this problem and have absolutely no idea where to start. You can't find the static friction since you don't know the normal force. You can't really use any of the centirpital motion equations since you don't have enough values for the variables
 
Physics news on Phys.org
Well your static friction would provide the centripetal force.

Ffriction = μmg

Fcentripetal = mv2/r
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Static Friction Between a Box and the Floor
Replies
11
Views
3K
Static friction coefficient for a crate in the back of a truck
Replies
6
Views
2K
How Do I Determine Force of Static Friction on a Rolling Car
Replies
15
Views
2K
Why static friction not kinetic in this problem?
Replies
5
Views
2K
Banked Curve-Determine smallest static coefficient of friction
Replies
9
Views
4K
Car on a hill - reasoning for static friction
Replies
5
Views
7K
Static Friction of a Car's Tyre
Replies
33
Views
10K
How do i find the coefficient of static friction?
Replies
2
Views
2K
Coefficient of Friction question for a cart going down a wooden ramp
Replies
18
Views
3K
What is the Needed Coefficient of Static Friction for a Car on a Banked Curve?
Replies
16
Views
2K

Hot Threads

Recent Insights

Back
Top