16. Angular Momentum

Intro to Angular Collisions

Conservation of Angular Momentum: Bullet and Door Collision Problem

Angular Collision Example

A uniform, 4.5-kg, square, solid wooden gate 1.5 m on each side hangs vertically from a frictionless pivot at the center of its upper edge. A 1.1-kg raven flying horizontally at 5.0 m/s flies into this door at its center and bounces back at 2.0 m/s in the opposite direction. (b) During the collision, why is the angular momentum conserved but not the linear momentum?

Collisions with Rotation Lecture Video

Dart with Thin Rod Collision - Conservation of Angular Momentum Demonstration and Problem

Intro to Angular Collisions (Two discs)

A solid wood door 1.00 m wide and 2.00 m high is hinged along one side and has a total mass of 40.0 kg. Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.500 kg, traveling perpendicular to the door at 12.0 m/s just before impact. Find the final angular speed of the door. Does the mud make a significant contribution to the moment of inertia?

Physics - Mechanics: Angular Momentum (7 of 11) Ex. 6: Bullet Striking Beam

A uniform, 4.5-kg, square, solid wooden gate 1.5 m on each side hangs vertically from a frictionless pivot at the center of its upper edge. A 1.1-kg raven flying horizontally at 5.0 m/s flies into this door at its center and bounces back at 2.0 m/s in the opposite direction. (a) What is the angular speed of the gate just after it is struck by the unfortunate raven?

Rotational Collisions

PHYS 101 | Rough Angular Momentum 7 - Disk and Bar Collision II

Asteroid Collision! Suppose that an asteroid traveling straight toward the center of the earth were to collide with our planet at the equator and bury itself just below the surface. What would have to be the mass of this asteroid, in terms of the earth’s mass M, for the day to become 25.0% longer than it presently is as a result of the collision? Assume that the asteroid is very small compared to the earth and that the earth is uniform throughout.

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36. Special Relativity

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Angular Momentum of Objects in Linear Motion

Conservation of Angular Momentum

Angular Momentum & Newton's Second Law

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