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The basic criterion at the college level is: A ball should be put at the location away from both opposing players These rules are combined with rules what to do with the return of serve. All rules about handling in and out balls are completely secondary

No to the last question

It is very difficult to use a radar gun to measure a speed of forehand let say for a sequence of 20 shots You have to try to see multiple problems

My response was in the context of Post #71 A byside comment: In the case of comparison with a radar gun the location of the radar gun matters We/ our club put a radar gun just OVER a net in the case of a serve so we measure a speed of a ball slowned down over the half of the court

At some levels of high school sectionals a coach can request a roving referee. It is considered to be uncivil somehow. I had an experience like that 2 years ago. Basically there is no solution for the problem you described

Does Suresh qualify as human?

As you know one can request a mark check on clay New Dunlop Fort balls leave a mark on hard surfaces

I do NOT think it is possible for Suresh

Hitti a ball j. Baseball is different than golf swing

I have suggested to google Bruce Elliot forehand You will get some info how the oncoming balls are fed The incoming balls are not fed for serve If you say it does not matter it is the end of the conversation

A forehand has an input parameter - a speed of an incoming ball Generally a ball machine is used- very easy to do The first question is whether the incoming ball contributes

You are producing terrible psts The methodology for forehands is different than for serve Go to a library and read some papers by Brice Elliot

Why did you post in this forum?

Whining should be forbidden I am very disappointed in you

You should be serious on week days You should try to go to a tennis shop, ask for 30 pounds of tension and play in San Diego for 6 months with a racket strung like that

You have to ask leed whether his past is sarcastic or not

your posts are impossible to read Try to read your sentence starting with the word "so" to see whether you r own post

Switching to a different subject The major weakness of Sock is his forehand return of serve The return of serve resembles the forehand rally stroke See the last French Open match between Nadal and Sock lost by Sock

As you know Brian Gotdon/Rick Macci has a "system" for theseuoses

Once more: you have to distinguish three different notions 1.parametric acceleration for golf 2. parametric acceleration for serve 3. parametric acceleration for forehand Equations of motion are not exactly the same- the direction of gravity matters On a top of it item 1 is a problem with a very...

Try to split the last sentence into two Reading your posts blows a brain of a reader The concept of landing backward is not very easy to defend (assuming that you promote it one way or another). The basic tenant of modern serve is to combine two momenta of a body- forward and upward. These two...

You should write epsilon*sin(theta) instead of dropping the multiplication symbol * The way the equation is written now is incorrect because it is not an equation right now in the first place Your sentences are too long - I cannot understand the last sentence of the post

Some posters do have 3 moments of inertia One poster coming from India has only one moment of inertia I do not like this Forum

Researchgate.net has the related article by Nsbit and McGinnis of 2014 for golf

Please see that the symbol of the second derivative of theta is missing

Please note that you did not define theta

You are failing completely in terms of presentation because you do not define parametric acceleration for serve The definition for golf does not help

The language is a bit flawed The moment of inertia is a function of two: 1.the frame of reference 2. a distribution of mass It does not depend of kinematics/equation of motion

It is very confusing Besides massages the OP talks about matching Are you sure that we are at the correct Web site?

A nap is better than an app