Metal rackets because they are made of tougher substances and last longer.
Tennis rackets used on tour, by the professional players
Most of them donate the rackets to charity, especially the top players. It is common to sign old rackets and auction them for charity.
Tennis players break their rackets out of frustration or anger when they make mistakes or are not performing well during a match.
1873, a development on hitting the ball with your hand
no
They get thrown away or given to a family member if wanted.
To play tennis
no not that I am aware of but there are gold plated rackets
More weight= more control. less weight=more power
Table tennis rackets would become obselete in favour of smartphones.
Aluminium was commonly used for tennis rackets because of its light weight properties and resistance meeting standards. Although today Aluminium has become almost "obsolete" with the composite rackets, mostly made of carbon and graphite.
If three fifths of the 55 tennis rackets in stock are metal, then 33 of the 55 tennis rackets are metal. 3/5 * 55 = 33.