A 2-meter-tall astronaut standing on Mars drops her glasses from her nose. How long will it take the glasses to reach the ground?
1 Answer
Apr 14, 2016
1 sec
Explanation:
She must not be without her suit in open Mars air. Jokes apart, Provided her reflex is not good enough, it takes about 1 sec .
Lets calculate how much time it will take in earth.
time of descent =
Now for Mars, lets calculate the g
We know
(Which, of course I did not remember, ref: http://nssdc.gsfc.nasa.gov/planetary/factsheet/planet_table_ratio.html)
And now from the formula for time of descent, we know
So