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A large plate is balanced at its center and two students of equal mass stand at...

A large plate is balanced at its center and two students of equal mass stand at its center. The plate is rotated on a frictionless pivot about an axis through its center and perpendicular to its face. The students then begin to walk out towards opposite edges. (Select T-True, F-False, I-Increases, D-Decreases, S-Stays the same. ). A) The students produce no net torque on the plate. B) The rate of rotation ... as the students walk outward. C) The students do no work in walking outward. D) The total angular momentum of the system ... as the students walk outward. E) When the students reach the edge and stop, the plate will have the same angular speed as when they started. (The answer is not TDFSF)

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Answer #1

A) False

The rate of rotation slows down, there has to be a torque to do that.

B) Decreases

angular momentum is conserved, moment of inertia increases so angular velocity has to decrease

C) False

The students do work against the centripetal force

D) Same

closed system, angular momentum is conserved

E) False

It increases.

FDFSF

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