Curve resistance

Okay kiddo, let me explain curve resistance to you in a way that's easy to understand. Imagine you are riding your bike on a big curve in the road. You notice that it's a bit hard to turn your bike and you have to pedal harder to keep going. That's because of something called "curve resistance."

You see, when you make a turn on your bike, you are fighting against a force called "centrifugal force." This force tries to push you outwards and make you fall over. When you turn your bike, you have to work harder to fight against this force and stay upright.

The same thing happens when cars or trains go around a curve. There is a force that tries to push them off the track, so they have to slow down and use more power to stay on track. This is called "curve resistance."

So, curve resistance is the force that slows down vehicles when they go around a curve. It's a bit like when you try to walk on a tightrope and have to work really hard to keep your balance. But engineers design roads and tracks to minimize curve resistance so vehicles can move safely and efficiently.