A drum major is given two batons, one gold and one plastic. He is told that both
ID: 1427828 • Letter: A
Question
A drum major is given two batons, one gold and one plastic. He is told that both batons have the same mass. He tries spinning each one and finds that the plastic one is much easier to start and stop spinning. He correctly concludes that the plastic baton, in comparison to the gold baton
must weigh more.
must weigh less.
has more of its mass distributed towards the ends.
has more of its mass distributed towards the center.
A)must weigh more.
B)must weigh less.
C)has more of its mass distributed towards the ends.
D)has more of its mass distributed towards the center.
Explanation / Answer
has more of its mass distributed towards the center.
as , more mass towards the center , less the moment of inertia ( I = mr^2) , easier to start sppining
D)has more of its mass distributed towards the center.
as , more mass towards the center , less the moment of inertia ( I = mr^2) , easier to start sppining
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