- #1
thorpie
- 15
- 0
Hello
Theoretically any ball that bounces 1.225 metres high is in the air for one second. This is fairly precise, +/-4% time variance is +/- 10 cm height variance, so bouncing to a height of 1.13 metres is 0.96 seconds and to a height of 1.32 is 1.04 seconds.
The theory is at least dependent upon identifying when he ball “leaves” the ground, which part of the ball is “at 1.225” metres high, and what size ball becomes measurably affected by air resistance.
Is anyone aware of any recorded experiments that quantify how long a second is, with various bouncing balls. There seem to be lots of discussion on bouncing balls and degradation of height bounced but nothing on measuring one second of time, and I cannot think of a simpler way to measure one second of time accurately from base.
Thank you for your time
Glenn
Theoretically any ball that bounces 1.225 metres high is in the air for one second. This is fairly precise, +/-4% time variance is +/- 10 cm height variance, so bouncing to a height of 1.13 metres is 0.96 seconds and to a height of 1.32 is 1.04 seconds.
The theory is at least dependent upon identifying when he ball “leaves” the ground, which part of the ball is “at 1.225” metres high, and what size ball becomes measurably affected by air resistance.
Is anyone aware of any recorded experiments that quantify how long a second is, with various bouncing balls. There seem to be lots of discussion on bouncing balls and degradation of height bounced but nothing on measuring one second of time, and I cannot think of a simpler way to measure one second of time accurately from base.
Thank you for your time
Glenn