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chapter 4 term
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7
Biology
Undergraduate 3
11/01/2011

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Term
angular impulse
Definition
change in angular momentum equal to the product of torque and time interval over which the torque acts
Term
angular momentum
Definition
quanity of angular motion possessed by a body measured as the product of moment of inerta and angular velocity
Term
centripital force
Definition
force directed toward the center of rotation for a body in rotational motion
Term
moment of inerta
Definition
inertial property for rotating bodies representing resistance to angular acceleration based on both mass and the distance the mass is distributed from the axis of rotation
Term
principal axis
Definition
three mutually perpendicular axes passing though the total body center of gravity
Term
principal moment of inerta
Definition
total body moment of inerta relative to one of the principal axes
Term
radius of gyration
Definition
distacne form the axis of rotation to a point where the body's mass could be concentrated without altering its rotational characteristics
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