Question

An 80 kg person is standing on the edge of a 50 kg disk whose radius is 1.5 m that can rotate about a pivot in its center. The person starts walking clockwise around the disk and the disk acquires an angular velocity of 3.0 rad/s.

Q1) What is the speed (m/s) at which the person is walking on
the disk?

Q2) What is the magnitude of the person’s angular velocity (rad/s)
relative to the ground?

Q3) what is the direction of travel (clockwise or counter clockwise) of the person and disk

Answer #1

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