Lift-induced drag

Okay, so imagine you have a toy airplane in your hand. Now, if you want to make the airplane go forward, you have to move your hand to generate what we call "lift" - this is what makes the airplane go up into the sky.

But, did you know that generating lift also creates what we call "drag?" Drag is like a force that slows down the airplane, and this can happen when you generate lift because it's like the air is pushing against the airplane as it moves forward.

This kind of drag that is created as a result of lift is called "lift-induced drag." It happens when the airplane needs to tilt its wings at an angle to keep going up, but this angle creates some turbulence in the air that slows it down - kinda like how you might drag your feet along the ground when you're going up a hill.

So, lift-induced drag is like a slowdown force that happens when an airplane is generating lift to go up in the sky. It's why airplanes need to have powerful engines to keep moving fast and be efficient!