Does Mass Affect the Rate of Free Fall?

[Arup Biswas]

From the eqn of motion deduced, I can say that two body, one of 50 kg, and one of 50 g if allowed to freely fall from same height, they will reach the ground the exact same time?? Practically is it possible? How ? They are largely different but same distance in same time?

 

[berkeman]

Yup. Well, in a vacuum anyway.

 

[berkeman]

You've seen the demos of different masses falling in a vacuum, right?

 

[Arup Biswas]

No i haven't!

 

[berkeman]

Pretty sure the Apollo astronauts did this demo on the moon for fun -- Googling now...

 

[berkeman]

https://nssdc.gsfc.nasa.gov/planetary/lunar/apollo_15_feather_drop.html

 

[Ibix]

Also

 

[Arup Biswas]

Amazing!

 

[CWatters]

Perhaps see also..
https://en.wikipedia.org/wiki/Galileo's_Leaning_Tower_of_Pisa_experiment

 

[russ_watters]

Amazing!

Small caveat: when you drop a rock toward Earth, you are also dropping the Earth toward the rock. What does flipping the situation over tell you?