<meta http-equiv="refresh" content="1; url=/nojavascript/"> Projectile Motion for an Object Launched Horizontally ( Real World ) | Physics | CK-12 Foundation
Dismiss
Skip Navigation

Projectile Motion for an Object Launched Horizontally

%
Best Score
Practice
Best Score
%
Practice Now
To Hit An Ace
 0  0  0

To Hit An Ace

Credit: Emmett Hume
Source: http://commons.wikimedia.org/wiki/File:John_Isner_2009_US_Open.jpg
License: CC BY-NC 3.0

At the 2010 Wimbledon match between John Isner and Nicolas Mahut, Isner set the record for the greatest number of aces in a match at 113. An ace is considered a legal serve that is not touched by the receiver, resulting in a point for the server.

Amazing But True

  • A legal serve in tennis is one where the server hits the ball across the net into the service court on the opposite side of the center service line. The ball has to enter within the legal dimensions of 6.4 \ m \times 4.11 \ m.

Credit: Eric Flemming
Source: http://www.flickr.com/photos/68105231@N00/2315297041
License: CC BY-NC 3.0

Pete Sampras tossing the tennis ball in the air for his serve [Figure2]

 

  • The speed at which the tennis ball is hit greatly determines the angle necessary for the ball to pass the top of the net. This delicate balance between variables is what separates great tennis players from the best. Use the diagram below to answer the following questions about this relationship.

License: CC BY-NC 3.0

Can You Apply It?

Using the information provided above, answer the following questions.

  1. Which of the two velocity vectors would require the server to hit the ball at a higher point from its release?
  2. Which serve (v_1orv_2) is under the influence of gravity for a longer period of time before hitting the ground?

Image Attributions

  1. [1]^ Credit: Emmett Hume; Source: http://commons.wikimedia.org/wiki/File:John_Isner_2009_US_Open.jpg; License: CC BY-NC 3.0
  2. [2]^ Credit: Eric Flemming; Source: http://www.flickr.com/photos/68105231@N00/2315297041; License: CC BY-NC 3.0
  3. [3]^ License: CC BY-NC 3.0

Reviews

Email Verified
Well done! You've successfully verified the email address .
OK
Please wait...
Please wait...
ShareThis Copy and Paste

Original text