 #1
 115
 3
I read an article where the author tried to find the maximal speed a car can have when taking a turn of certain radius. They represented the car as a point and claimed that the force of friction is the centripetal force  acting perpendicular to the trajectory of the car.
I do understand why friction is the force that propels the car. What I don't understand is: Why is the net force acting on a car perpendicular to its trajectory?
I have drawn this diagram:
The rectangle is the car.
The green segments are the wheels.
What is wrong with my diagram?
I do understand why friction is the force that propels the car. What I don't understand is: Why is the net force acting on a car perpendicular to its trajectory?
I have drawn this diagram:
The rectangle is the car.
The green segments are the wheels.
What is wrong with my diagram?
Attachments

5.3 KB Views: 613