Optimum Racquet Balance for Performance II - MgR/I Data for ATP Pros
https://tt.tennis-warehouse.com/index.php?threads/optimum-racquet-balance-for-performance-ii-mgr-i-data-for-atp-pros.387805/
MgR/I
https://tt.tennis-warehouse.com/index.php?threads/mgr-i.586338/
Optimum Balance Data for ATP Pros III
https://tt.tennis-warehouse.com/index.php?threads/optimum-balance-data-for-atp-pros-iii.390065/
Optimum Racquet Balance for Performance - New Racquet Spec Data for ATP Pros
https://tt.tennis-warehouse.com/index.php?threads/optimum-racquet-balance-for-performance-new-racquet-spec-data-for-atp-pros.387620/
ค่า mgR/I
Optimum Racquet Balance for Performance II - MgR/I Data for ATP Pros
https://tt.tennis-warehouse.com/index.php?threads/optimum-racquet-balance-for-performance-ii-mgr-i-data-for-atp-pros.387805/
https://tt.tennis-warehouse.com/index.php?threads/mgr-i-where-i-swingweight-20mr-100m.571237/
https://tt.tennis-warehouse.com/index.php?threads/optimum-racquet-balance-for-performance-ii-mgr-i-data-for-atp-pros.387805/
https://www.physicsforums.com/threads/simple-cheap-method-of-measuring-mass-distribution-of-object.866100/
https://tt.tennis-warehouse.com/index.php?threads/optimum-racquet-balance-for-performance-ii-mgr-i-data-for-atp-pros.387805/
https://www.tennisplayer.net/bulletin/forum/tennisplayer/1854-mgr-io-21-formula-for-frame-pro-balance-points-moment-of-inertia-total-mass-gravita
https://tt.tennis-warehouse.com/index.php?threads/optimum-racquet-balance-for-performance-ii-mgr-i-data-for-atp-pros.387805/page-2
https://tt.tennis-warehouse.com/index.php?threads/mgr-i.586338/
https://tt.tennis-warehouse.com/index.php?threads/mgr-i.586338/
ตารางไม้เทนนิส
https://tennisnerd.net/pro-player-racquets
Parallel axis theorem
https://en.wikipedia.org/wiki/Parallel_axis_theorem
https://en.wikipedia.org/wiki/Moment_of_inertia#Simple_pendulum
https://www.badmintoncentral.com/forums/index.php?threads/swing-speed-vs-head-weight.154777/page-2
The compound pendulum
http://farside.ph.utexas.edu/teaching/301/lectures/node141.html
standard gravity, g=980.665 cm/s2
https://www.oxfordreference.com/view/10.1093/oi/authority.20110803100527500