Sure, let's dive into the exciting world of physics and take on the skydiving adventure to understand air resistance and drag force! Hang on tight, we're about to plunge into this topic together!

• Definition: The drag force is what objects experience when they move through air (or other fluids). It slows objects down.
• Effect: Imagine trying to run underwater. You feel a force holding you back. That's a form of drag force!

• Alan Eustace's Record Jump: In 2014, he jumped from 41.4km above New Mexico, USA, reaching a speed of 1300km/h, faster than the speed of sound. Normal skydives are less than 200km/h.
• Why the Difference in Speed? Air resistance changes with height. The higher you are, the less air there is, and the less air resistance you experience.

• Weight Force: Acts vertically downwards, and it's almost constant. It doesn't change much even at 41 km above Earth's surface.
• Drag Force: Acts in the opposite direction of motion. If falling vertically, drag pulls you upwards.
• Buoyancy: An upward force due to the displacement of air by the diver.