Hey guys
just wandering if anyone could answer these questions for me please?
1. Explain the consequences of the total reaction force of a roadway on a car being at an angle to the surface on a horizontal road.When would this occur?
2. At the end of many steep declines there are emergency exit points for trucks that have sand as a base rather than a solid railway. Explain why these are necessary.
Thankyou in advance
Well, if the reaction force is at an angle, the reaction can actually contribute to the centripetal force required to make the car go in a circle. This way, you're less likely to have a car skidding out.
As for the emergency exit points, I'd assume it's to quickly slow the wheels down by (rolling) friction as it's not easy for wheels to travel in sand.