An 8.4-kg mass is placed at (3.0, 4.0) m. Where can a 4.2-kg mass be placed so that the moment of inertia about the z axis is zero?
a. (?3.0, ?4.0) m b. (?6.0, ?8.0) m
c. (?1.5, ?2.0) m d. (1.5, 2.0) m
e. There is no position giving this result.
e
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