A tennis player slices the ball to spin and deviate from its normal parabolic path. What is an explanation for this phenomenon?
I am having trouble visualizing the phenomena that is occurring with the slice and as well as the explanation give by the book.
How is the velocity changing?
On Earth, a tennis player can hit a tennis ball normally causing the ball to travel on a path that is a symmetrical parabola. A tennis player can also hit a tennis ball with a “slice” which causes the ball to spin and deviate to one side of its normal path. What is the best explanation for this deviation?
A. There is an additional acceleration on the ball. Or
B. The spin on the ball used energy so the ball could not travel in a straight line.
The correct answer is A.
Here is an explanation from the book.
The sliced ball travels off to the side, so there must be an acceleration causing the velocity to change. Since gravity is always directed down toward the earth, there must be an additional acceleration from another source (other than gravity) causing the ball’s velocity to deviate to the side.