Hammer / feather moon drop clip

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SUMMARY

The forum discussion centers on the analysis of a video clip demonstrating the free-fall of a hammer and feather on the Moon, highlighting the unique motion due to the Moon's gravity. Participants suggest that calculating the Moon's gravity from the clip is feasible by analyzing frame rates and known distances, such as the height of an astronaut. They emphasize the need for precise measurements and video analysis tools to accurately determine the time of free fall. The lack of a measuring tool, like a 1-meter ruler, is noted as a missed opportunity for better scientific accuracy.

PREREQUISITES
  • Understanding of basic physics concepts related to gravity
  • Familiarity with video analysis tools for motion tracking
  • Knowledge of frame rate calculations in video editing
  • Ability to identify and measure known distances in video footage
NEXT STEPS
  • Research video analysis software such as Tracker or Kinovea for motion analysis
  • Learn about calculating gravitational acceleration using free-fall data
  • Explore the physics of motion in low-gravity environments
  • Investigate methods for accurate distance measurement in video clips
USEFUL FOR

Physics enthusiasts, educators, and anyone interested in the scientific analysis of motion in low-gravity environments, particularly those studying lunar experiments.

houlahound
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Not a question but such a good clip for those that have not had the pleasure;

 
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To me the slower free-falling hammer than it does on Earth looks more fascinating, almost as if they are doing the experiment underwater.
 
Yr posts makes me wonder if it is possible to calculate the Moon's gravity by motion analysing this clip??

Need the frame rate and a known distance eg height of astronaut, their must be some object in view someone knows the precise length of??
 
With the frame rate, you will also need to know the number of frames between the moment of the release of the objects and the moment when they hit the ground, which I think is rather difficult to achieve unless you have some video analyzer to decompose the frames. For the first try may be we can just believe that the playback time is the same as the time the scene was recorded, i.e. use the displayed YouTube's time.
 
Yes that would be a good first calculation. I am worried that the optics seems a bit "squishy" ie distorted to get good distance data.

Why oh why did they not think to pack a 1m ruler.
 
houlahound said:
Why oh why did they not think to pack a 1m ruler.

cuz they don't/didn't know what a metre is/was :wink::biggrin:

yeah some sort of measuring ruler would have been good to complete the science experimentD
 

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