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angular velocity
the angular displacement of an object divided by the time needed to make the displacement
impulse
the product of the average force on an object and the time interval over which it acts
momentum
the product of an object’s mass and the object velocity
impulse-momentum theorem
the impulse on an object is equal to the change in its momentum
angular momentum
(symbol: L) the product of a rotating object moment of inertia and angular velocity
angular impulse-angular momentum theorem
the object’s angular impulse equal to the change in the object’s angular momentum
closed system
a system which does not gain or lose mass
isolated system
system where the net external force exerted on a closed system is zero
law of conservation of momentum
states that the momentum of any closed, isolated system does not change
enables you to make a connection between conditions before and after an interaction without knowing any details of the interaction
law of conservation of angular momentum
states that if no net external torque acts on a closed system, then its angular momentum does not change, as represented by the following equation