- #1
greener1993
- 43
- 0
Hey guys, how are you? :D
I’m doing an experiment on a squash ball where I drop it from a 0.5m height and work out its "bounced height" to determine energy lose with the table. By per=mgh
When dropping it from 0.5 m I get a result of 0.125m on the first bounce. However when I tried it with a hole placed in the squash ball the bounce was higher at 0.135m this pattern continued for all bounces and all tests.
The reason it is confusing me is because I believed that when the ball hit the table it became deformed into an oval shape the pressure inside the ball increases and "pushes" the ball back into the original shape, whist doing so giving it height on the return.
However with a hole I expected this pressurised gas to leave the ball and wouldn't push the ball back into its original shape as quickly or with the same magnitude.
The results have taken me by surprise and would be grateful if someone could explain the physics is hide this increase in height to me.
I’m doing an experiment on a squash ball where I drop it from a 0.5m height and work out its "bounced height" to determine energy lose with the table. By per=mgh
When dropping it from 0.5 m I get a result of 0.125m on the first bounce. However when I tried it with a hole placed in the squash ball the bounce was higher at 0.135m this pattern continued for all bounces and all tests.
The reason it is confusing me is because I believed that when the ball hit the table it became deformed into an oval shape the pressure inside the ball increases and "pushes" the ball back into the original shape, whist doing so giving it height on the return.
However with a hole I expected this pressurised gas to leave the ball and wouldn't push the ball back into its original shape as quickly or with the same magnitude.
The results have taken me by surprise and would be grateful if someone could explain the physics is hide this increase in height to me.