A car goes around an icy banked curve (frictionless) at a speed that is not too...
A car goes around an icy banked curve (frictionless) at a speed that is not too fast so that the car stays on the circula path. What causes the car to follow the circular path?
A car goes around an icy banked curve (frictionless) at a speed that is not too fast so that the car stays on the circula path. What causes the car to follow the circular path?
| the normal force from the road |
| gravity |
| the friction force from the road |
| No force causes the car to do this because the car is traveling at constant speed and therefore has no acceleration. |
Homework Answers
The normal force from the road because if the car is on a banked turn, the normal force (which is always perpendicular to the road's surface) is no longer vertical. The normal force now has a horizontal component, and this component can act as the centripetal force on the car. Given just the right speed, a car could safely negotiate a banked curve even if the road is covered with perfectly smooth ice!
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