Answer:
the speed of the astronaut is 36.78 m/s.
Step-by-step explanation:
Given;
centripetal acceleration of the astronaut,
= 12 g = 12 x 9.8 m/s² = 117.6 m/s²
radius of the centrifuge, r = 11.5 m
The speed of the astronaut is calculated as follows;
![a_c = (v^2)/(r) \\\\v^2 = a_c r\\\\v = √(a_c r) \\\\v = √(117.6 * 11.5) \\\\v = 36.78 \ m/s](https://img.qammunity.org/2022/formulas/physics/college/4faeetktd3k34n4p9qmhiqdjqklnbk6r9u.png)
Therefore, the speed of the astronaut is 36.78 m/s.