If you have the equipment you can film the bounce with a height metric in the background so that the cameral will catch the object as it bounces up against the height metric (e.g., a meter stick). If the camera is really special and you can take slo mo pictures that's even better because you can see the exact moment the object reaches max height on the meter stick.
A less precise method would be to time the fall from the max bounce height. In which case the height the ball fell from would be calculated as h = 4.9 T^2 where T is the timed fall in seconds and h is the bounce height in meters.
Chat with our AI personalities
72 meter
rubber ball
The simplest way is to measure it using a metric measure tape. An alternative is to measure your height in inches and multiply the answer by 2.54
3 ft
Trigonometry