Good pictures. Completely correct. Amond the many resources that get it right, see https://www.sciencefacts.net/centripetal-force.html . * In order to continue turning, an inward pointing centripetal force (static friction between tires and road in this case) is necessary. That force produces an inward centripetal acceleration which changes the direction of the velocity, hence the car turns.
- Even this resource makes a mistake, saying about the centrifugal force, “The outward force that the passengers feel in a car.” No, they don’t. Instead they feel an inward force of the seat belts and the doors which luckily keep them in the car. In other words, there is no example for centrifugal force – it doesn’t exist.
Andy Veh, University of Alaska Physics Professor
