17 7 points Starting from rest, an astronaut training centrifuge reaches the maximum angular speed of 3 rad/s in 20s, th

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17 7 Points Starting From Rest An Astronaut Training Centrifuge Reaches The Maximum Angular Speed Of 3 Rad S In 20s Th 1 (22.16 KiB) Viewed 251 times

17 7 points Starting from rest, an astronaut training centrifuge reaches the maximum angular speed of 3 rad/s in 20s, then remains rotating at the maximum angular speed. 1. What was the angular acceleration (in rad/s/s) of the centrifuge during the first 20 s? (1 mark) 2. What was the angular acceleration of the centrifuge at t=25s? (1 mark) 3. Given the radius of the centrifuger = 5 m, find linear (translational) velocity of the astronaut when the centrifuge reaches its maximum angular speed. (2 marks) 4. What is the centripetal acceleration, ac of the astronaut at the maximum angular speed? (2 marks) 5. What is the ratio ? Use g = 9.8 m/s/s. Provide the answer to closest integer. (1 mark) Show ALL your working.