Red tennis balls bounce lower and move more slowly through the air, giving beginning players a chance to set up and take a good swing at the ball. Red tennis is named after the red foam or felt balls that are used at this stage. Here is a look at the different levels of tennis currently available: RED This allows you to play your game your way – from your first time out until deep into retirement. If you watch the bounce very carefully, and compare it with dropping each ball separately, you can see that not only does the lighter ball bounce more vigorously the heavier ball bounces less vigorously as well.The best thing about tennis is that it grows with you, with a wide array of racquets, balls and courts to match your level of play and athleticism. That means its momentum upwards overwhelms the smaller downward momentum of the lighter upper ball. The two balls have similar speeds but the lower one has greater mass. When the balls collide, momentum from each ball can be transferred to the other. It's related not just to the speed of an object but also to its mass. At a simple level, momentum is the amount of motion in one direction. The principle here is known as the conservation of momentum. So the upper ball rebounds not just with its normal (hitting the floor) bounce but also with an extra shove from the lower ball. When the two balls collide with each other, some of the upward motion of the lower ball is transferred to the upper one. This stunt relies on the lower ball bouncing up and hitting the upper ball while it's still on the way down.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |