10 ft (3 m), stationary metal pole, most you buy are 12 ft, so you can put 2 ft into the ground.
The centripetal force acting on a tether ball swinging around a pole is provided by the tension in the tether. This force is directed towards the center of the circular path the ball is following and is necessary to keep the ball in its circular motion.
The tether ball should hang down around 1-3 feet from the top of the pole for optimal gameplay. This length allows for proper swings and strikes without the ball hitting the ground too frequently. Adjustments can be made based on the height and age of the players.
The object of tetherball is to hit the ball and the attached string around a pole for a certain amount of rotations until it can no longer be hit anymore, whoever does that wins.
obviously they made a tether-ball to play tether-ball
Teather BAll
who invented the tether ball you ask? The person who invented the tether ball is named Timothy O'Brien.
There are many manufacturers of "tether balls" in the US and overseas.
1898
Tetherball primarily incorporates two simple machines: the pulley and the lever. The pulley is formed by the way the ball is attached to the top of the pole, allowing it to move around the pole with minimal friction. The pole itself acts as a lever, where the ball's movement around the pole can be influenced by the force applied by players. These simple machines work together to create the dynamics of the game.
Tether it to a pole or use an anchor.
My friend came over because she wanted to play tether ball with me.
Niger, Africa