What should a person on a freely rotating turn table do to decrease his (angular) speed ?
A
Bring his hands together
B
Raise his hands up
C
Spread his hands outwards
D
Sit down with raised hands
Correct Answer: Spread his hands outwards
When a person on a turn table will raise his hands, there will be increase in the momentum of inertia. Hence, the angular velocity of the turntable will decrease.