Servo motor for throwing a rubber ball

Currently I throw a ping pong ball by performing gesture like a baseball pitcher...

Youtube link

Scaling down the rubber ball to ping pong ball... thanks to the same idea here

Mechatronic-Basketball-Shooter

The pure swing indeed cannot generate enough force to make ball fly a long distance, human
muscles actually are the main power source.

The fly distance is approximately 28 inches, I aim to reach 40 inches by the same mechanical design.