File:Falling ball.jpg
From WikiMD's WELLNESSPEDIA
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Original file (819 × 2,751 pixels, file size: 363 KB, MIME type: image/jpeg)
Summary[edit]
| Summary | |
|---|---|
| Description | An initially-stationary object which is allowed to fall freely under gravity drops a distance which is proportional to the square of the elapsed time. This image, spanning half a second, was captured with a stroboscopic flash at 20 flashes per second. During the first 1/20th of a second the ball drops one unit of distance (here, a unit is about 12 mm); by 2/20ths it has dropped at total of 4 units; by 3/20ths, 9 units and so on. To take the picture, the ball - about the size of a tennis ball - was suspended by a short length of black thread and was released as the shutter was opened and the flash triggered. The shutter remained open for the whole of the half-second period, during which time the flash fired multiple times to capture the ball at 1/20 second intervals. |
| Source | Wikimedia Commons file page |
| Author | MichaelMaggs |
| Permission | See original Commons license details. |
Licensing[edit]
Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 license.
Official license: CC BY-SA 3.0
License page: CC BY-SA 3.0
Original attribution and file history: Wikimedia Commons
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:25, 5 June 2026 | | 819 × 2,751 (363 KB) | Maintenance script (talk | contribs) | == Summary == Importing file |
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File usage
The following file is a duplicate of this file (more details):
- File:Falling ball.jpg from Wikimedia Commons
