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12 Nov 2019
A merry-go-round spins freely when Janice moves quickly to thecenter along a radius of the
merry-go-round. It is true to say that
A) the moment of inertia of the system decreases and the angularspeed increases.
B) the moment of inertia of the system decreases and the angularspeed decreases.
C) the moment of inertia of the system decreases and the angularspeed remains the same.
D) the moment of inertia of the system increases and the angularspeed increases.
E) the moment of inertia of the system increases and the angularspeed decreases.
A merry-go-round spins freely when Janice moves quickly to thecenter along a radius of the
merry-go-round. It is true to say that
A) the moment of inertia of the system decreases and the angularspeed increases.
B) the moment of inertia of the system decreases and the angularspeed decreases.
C) the moment of inertia of the system decreases and the angularspeed remains the same.
D) the moment of inertia of the system increases and the angularspeed increases.
E) the moment of inertia of the system increases and the angularspeed decreases.
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Bunny GreenfelderLv2
12 Nov 2019