The discussion revolves around a physics problem concerning a sports car navigating a flat, unbanked curve. The focus is on the role of static versus kinetic friction in determining the maximum speed at which the car can travel without sliding off the curve.
The discussion is ongoing, with participants providing insights into the nature of friction and its dependence on relative motion between surfaces. There is an exploration of the conditions under which static friction applies, but no consensus has been reached.
Participants reference the importance of understanding the conditions that lead to skidding versus maintaining grip, indicating a need for clarity on the definitions and applications of static and kinetic friction in this context.
Because we do not want the car sliding out of the curved track. The piece of tyres in contact with the asphalt should not move relative to it.Tahmeed said:Homework Statement
The sports car ) is rounding a flat, unbanked curve with radius R . If the coefficient of static friction between tires and road is Us, what is the maximum speedat which the driver can take the curve without sliding?
why in this problem i am given Static fiction coefficient instead of kinetic?
Friction relates to surfaces in contact. The choice of static or kinetic friction is determined by whether there is relative motion between the two surfaces. The motion of the car is not important; what matters is whether the part of the tyre in contact with the road is moving relative to the road - i.e. skidding.Tahmeed said:why in this problem i am given Static fiction coefficient instead of kinetic?
That's not really the key. An accelerating car on the flat can experience static friction in the direction of motion without skidding.CWatters said:Which direction is the friction acting?
Is the car moving in that direction?
haruspex said:That's not really the key. An accelerating car on the flat can experience static friction in the direction of motion without skidding.