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23 Nov 2019
In a large centrifuge used for training pilots and astronauts,asmall chamber is fixed at the end of a rigid arm that rotates inahorizontal circle. A trainee riding in the chamber of acentrifugerotating with a constant angular speed of 2.2 rad/sexperiences acentripetal acceleration of 3.2 times the accelerationdue togravity. In a second training exercise, the centrifuge speedsupfrom rest with a constant angular acceleration. When thecentrifugereaches an angular speed of 2.2 rad/s, the traineeexperiences atotal acceleration equal to 4.5 times the accelerationdue togravity. (a) How long is the arm ofthecentrifuge? (b) What is the angularaccelerationin the second training exercise?
In a large centrifuge used for training pilots and astronauts,asmall chamber is fixed at the end of a rigid arm that rotates inahorizontal circle. A trainee riding in the chamber of acentrifugerotating with a constant angular speed of 2.2 rad/sexperiences acentripetal acceleration of 3.2 times the accelerationdue togravity. In a second training exercise, the centrifuge speedsupfrom rest with a constant angular acceleration. When thecentrifugereaches an angular speed of 2.2 rad/s, the traineeexperiences atotal acceleration equal to 4.5 times the accelerationdue togravity. (a) How long is the arm ofthecentrifuge? (b) What is the angularaccelerationin the second training exercise?
Elin HesselLv2
9 Mar 2019
