9 big muscles are used to throw a ball
As few as you can. You don't want anything other than your throwing arm moving when you're throwing a dart. The more parts of you that move during a throw, the more vectors are added to the equation of where the dart is going to go.
yes
A dart
Pretty fast The average speed when the dart hits the board is around 40mph. Most successful dart players do not throw the dart hard. Best technique is to incorporate some arc which is decreased when dart is thrown hard plus you lose control if thrown fast.
The dart was penetrating through the dart board after a very forceful throw.
groin mainly
legs, arms, eye
7' 9¼"
Arm, core muscles, and Legs.
Normally about 10ft.
A dart.