Asked by katy

an astronaut rotates at the end of a test machine whose arm has a length of 10.0m. if the acceleration she experiences must not exceed 5g (g=10m/s^2? what is the maximum number of revolutions per minute of the arm?
Answered by bobpursley
5g>v^2/r

and v=RPM*1min/60sec * radius

5g>RPM^2 * 1/3660 * r

solve for RPM
Answered by Jay
42.77 RPM
Answered by Brit
I did what Bob did and got 134 rpm, which is wrong and crazy fast, but Jay's answer is only twice what the answer should be. What did you do?
Answered by Dhairya
Answer is 21 idk why and how
Answered by Ilya
A=v^2/r
5g=50ms^-2
50ms=v^2/10m
V^2=500
V=22.26
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