chaotiiic said:
tiny-tim said:hi chaotiiic!
formula looks ok
are you sure about the 345 ?
(and speed is m/s, not m/s2)
tiny-tim said:yes!
(are you ok now, or is there anything you're still not sure about?)
chaotiiic said:
A banked curve with no friction refers to a curved track or road that is tilted at an angle, allowing objects to move around it without any resistance from friction. This type of curve is often used in race tracks or roller coasters to allow for higher speeds and smoother turns.
A car moves around a banked curve with no friction due to the force of gravity and the centripetal force. The angled surface of the curve exerts a normal force on the car, which acts as the centripetal force, pushing the car towards the center of the curve. This, combined with the force of gravity pulling the car downward, allows the car to maintain its speed and direction around the curve.
If there is friction present on a banked curve, it can cause the car to slow down and potentially slide off the track. This is because the friction force acts in the opposite direction of the car's motion, reducing the centripetal force and causing the car to lose its grip on the track.
The angle of a banked curve can affect the car's speed by altering the amount of centripetal force acting on the car. A steeper angle will result in a greater normal force and therefore a greater centripetal force, allowing the car to maintain a higher speed around the curve. However, if the angle is too steep, it can cause the car to lose control and potentially flip over.
Yes, there are many real-life examples of banked curves with no friction. Some examples include race tracks, roller coasters, and banked turns on highways. These structures are designed specifically to reduce the effects of friction and allow for smoother and faster movement around curves.