Angular momentum of rigid systems | AP Physics | Khan Academy

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The magnitude of the angular momentum of a rigid system about a specific axis is related to the rotational inertia and angular velocity of the rigid system. Angular impulse is defined as the product of the torque exerted on an object or rigid system and the time interval during which the torque is exerted. Angular impulse has the same direction as the torque imparting it. A rotational form of the impulse-momentum theorem relates the angular impulse delivered to a rigid system to the change in angular momentum of that rigid system.

Sections:
00:00 - Intro
00:47 - What is angular momentum
04:19 - Direction of angular momentum
08:21 - Impulse = change in linear momentum
10:46 - Angular impulse = change in angular momentum
13:50 - Force vs. time graphs & torque v.s time graphs

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