What power does the ball make? Can pull up the big ball? material Small plasticine / large plasticine / straw / thin line step -1- Pass the thin wire through the straw -2- Two pieces of plasticine are smashed into two balls of different sizes, respectively fixed at the ends of the thin line -3- Put the end of the large plasticine underneath and find that the small plasticine was pulled up. -4- Swing the wrist up to rotate the small plasticine ball Found that the string slowly pulled the large plasticine ball up. principle An object that makes a circular motion has a tendency to fly along the circumferential tangential direction due to its own inertia, so that the rotating object is away from its center of rotation. This phenomenon is called centrifugation. In the experiment, the small piece of plasticine is rotating rapidly, away from the center of rotation, and the generated force is applied to the underlying large plasticine through the rope, resulting in an upward pulling force. So the big ball below is picked up by a small ball with a rope. The briefcase spacious design with large file and laptop slots, and smaller slots for notepads, power banks, and more. Various carrying options include: handles, shoulder straps. A good partner in your workplace. PU Leather Briefcase,Golf Stand Bag,Golf Clothing Bag,Custom Golf Bags Longzhao Technology (Guangdong) Company Limited , https://www.gdprincebag.com