A 85.0 kg astronaut is training for accelerations that he will experience upon reentry. He is placed in a centrifuge (r = 20.0 m) and spun at a constant angular velocity of 15.0 rpm (revolutions per minute). He is then slowed and brought to a stop in 2.0 minutes.
⦁ Find the magnitude and direction of the centripetal acceleration when he is spinning at constant angular velocity.

⦁ Find the magnitude and direction of the centripetal force when he is spinning at constant angular velocity.

⦁ How many g's is the astronaut experiencing when moving at constant angular velocity?

⦁ Find the torque that is needed to bring the centrifuge to a stop knowing the centrifuge has a mass of 5500.0 kg (ignore all other forces) and the force is applied at the edge of the centrifuge (20.0 m radius). Hint: torque is based on the change of linear velocity.

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To solve the given problems well use the following formulas 1 Centripetal acceleration a a 2 r 2 Cen... View the full answer