Okay kiddo, imagine you are playing with your toy car on the floor. You know how sometimes mommy or daddy tell you not to go too fast and crash into something? That's kind of similar to a speed limit. Basically, a speed limit is a rule or law that tells people how fast they can go when driving their cars, just like how mommy and daddy tell you how fast you can go with your toy car so you won't crash into things.
Now, the speed limit varies depending on the road you are driving on. Some roads are wide and straight, while others are narrow and winding. The speed limit is set based on things like how many lanes there are, how many cars are typically on the road, and how sharp the turns are. For example, on a small and winding street, the speed limit might be lower, say 10 miles per hour (mph), so that drivers can safely navigate the turns. On a highway with multiple lanes and little traffic, the speed limit might be higher, say 60 or 70 mph, so people can efficiently get to their destination.
It's important for everyone to follow the speed limit because driving too fast can be dangerous. When a car is going really fast, it takes longer to stop if they need to brake suddenly, which means they could crash into other cars or objects. Also, going too fast can make it harder for drivers to control their car, which can lead to accidents.
So, just like how mommy and daddy remind you to be careful with your toy car, driving adults have to remember to follow the speed limit to keep themselves and others safe while on the road.