the kind that works...obviouslyy:))
There is no evidence of a ball been made from polyurethane. There are polyurethane foam balls, but unfortunately no tennis balls. The process is likely to be the same as a normal tennis ball, the only difference being that the rubber in the ball is replaced by polyurethane.
I real don't want to tell it because it is an assignment but it is a tennis ball
Tennis balls are hollow. The skin made out of two hemisphere bits of rubber and two dog boned shaped fur, which help make the ball more aerodynamic.
It depends on the rubber band ball, some people use a tennis ball or ping pong balls to start it off. Or as i have done people make it entirely out of rubber bands and use rubber bands to start it off. i have a rubber band ball around the size of a football, it is completely made of rubber bands.
The tennis balls nanosize butyl rubber layer slows down the escape of air so the ball doesn't lose its pressure as quickly
You cannot make a tennis ball bouncier after it has lost its bounce. Once the ball has died, you must get a new one.
easy. get a bouncy ball and start wrapping rubber bands around it.
make a foil ball and put rubber bands around it
The dry tennis ball will bounce higher, if you use the same amount of force, the wet tennis ball will slide a bit when it hits the ground and bounce lower. In short, the weight of the water will make the tennis ball heavier, with the weight of the water keeping it from bouncing as high.
It will make it slower.