Final answer:
Worn or bald tires increase the chance of having a flat tire and increase stopping distance. Another example where more friction is desirable is when playing sports like basketball or soccer.
Step-by-step explanation:
Worn or bald tires increase the chance of having a flat tire because the tread on the tire is what provides grip and traction on the road. When the tread is worn out, the tire is more likely to lose traction and slip, which can lead to a flat tire.
Additionally, worn tires have less surface area in contact with the road, which increases stopping distance. The friction between the tires and the road is what allows the car to slow down and stop, so when the tires are bald, there is less friction and more distance is needed to come to a stop.
Another example where more friction is desirable is when playing sports like basketball or soccer. When players want to stop quickly or change direction, they need to generate friction with the ground.
The friction allows them to grip the surface and make quick movements without slipping. Without enough friction, players would have a hard time maneuvering and controlling their movements on the court or field.