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12.
REASONING
The magnitude
F
c
of the centripetal force that acts on the skater is
given by Equation 5.3 as
2
c
/
Fm
v
r
=
, where
m
and
v
are the mass and speed of the
skater, and
r
is the distance of the skater from the pivot. Since all of these variables
are known, we can find the magnitude of the centripetal force.
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This note was uploaded on 01/29/2010 for the course CALC 01:640:135 taught by Professor Soffer during the Spring '08 term at Rutgers.
 Spring '08
 SOFFER

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