you do nothing. its there to show you that you are the size of a tennis ball.
I believe it does. If you imagine it with a bowling ball and two tennis balls, when you roll one tennis ball into another stationary tennis ball, it rolls away, but not that far. Now repeat the same experiment with a bowling ball and a tennis ball, the result is much clearer as to which moved the stationary tennis ball more. The bowling ball did as it has a larger mass and size.
about the size of a tennis ball
The current regulation size of a table tennis ball is 40mm.
It is between the size of a golf ball and a tennis ball.
2.63 inches in diameter
you can t really say what size but its bigger than a tennis ball.
about the size of a tennis ball were do sharks swim?
An Ostrich's eye is the size of a tennis ball
a Golf ball
you put it in coke or Pepsi or dr pepper
Taranchulas get quite big, about the size of a tennis ball. xx