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64. The aerialist is in extended position with
2
1
19.9 kg m
I
=⋅
during the first and last
quarter of the turn, so the total angle rotated in
1
t
is
1
0.500 rev.
θ
=
In
2
t
he is in a tuck
position with
2
2
3.93 kg m
I
, and the total angle rotated is
2
3.500 rev.
=
Since there
is no external torque about his center of mass, angular momentum is conserved,
11
2 2
I
I
ωω
=
. Therefore, the total flight time can be written as
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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