https://padlet.com/2024mcnallyow/6plfvpqft0e5ghs en-us 2021-09-27 15:42:53 UTC 2021-09-28 16:03:01 UTC hello@padlet.com https://padlet.net/icons/png/26be.png 2024mcnallyow https://padlet.com/2024mcnallyow/6plfvpqft0e5ghs/wish/1775186768 Weight is a force that is always directed toward the center of the earth. In general, the magnitude of the weight depends on the mass of an object as determined by Newton’s law of gravitation. By rule, the weight of a major league baseball is 5 ounces. A baseball is made with a solid core, a string wrapping around the core, and a stitched covering, so the weight is distributed throughout the ball. But we can often think of the weight as collected and acting through a single point called the center of gravity. The center of gravity is the average location of the weight of an object. To first order, the center of gravity for a baseball is located at the exact center of the ball. In flight, the ball rotates about the center of gravity. Newton’s laws of motion describe the translation of the center of gravity. The physics describing the rotation, translation, weight and center of gravity of a baseball is the same for any ball. A softball is larger and slightly heavier (6.25 ounces) than a baseball. So the trajectory of a batted softball will be similar, but not the same as a batted baseball. In the software described below, the student can vary the type of ball to see the difference that weight produces in the flight of a ball.]]> 2021-09-28 16:02:46 UTC https://padlet.com/2024mcnallyow/6plfvpqft0e5ghs/wish/1775186768