Tennis is a great sport that is played with two or four players that strike a ball with a racket over a net stretched across a court. The usual form of tennis is played with a felt-covered hollow rubber ball on a grass, clay, or artificial surface(hardcourts). Tennis not only requires strategy, strength, and fast reflexes it also matters how you wield your racket. It is not as simple as hitting the ball, but which spot on the racket is used to strike the ball. Depending on the ball, there are different places on the racket which are best suited to strike the ball. The first thing you do is a serve this is a shot to start off a point. To begin a serve you start by tossing the ball into the air and hitting it over head into the diagonally opposite …show more content…
The rotational motion also known as spin affects the tennis balls trajectory when it travels through the air, as well as how it bounces. Players use rotational motion to their advantage because the spin of the ball affects their shot and makes it more difficult to return. When the tennis ball falls it initially gains speed or kinetic energy this is known as motion of energy. The ball falling velocity downward is influenced by gravity because without gravity the ball would never hit the ground it would go on forever. So when the ball reaches the ground it hits the surface that is at rest. When the ball hits the surface of the ground it has a downward velocity and this causes the ball to temporarily deform and it shoots back up. The air in the ball acts like a spring because it gets compressed when it comes in contact with the ground then it expands again. During the collision with the court some of the energy that the ball has is converted to heat energy and this is because the law of conservation of energy which states energy cannot be created nor destroyed only converted. And because it produced this other energy the ball would bounce with less energy than what is had before it hit the