{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lect20-Phys172s11-(11.1-11.4-Angular_momentum)

Lect20-Phys172s11-(11.1-11.4-Angular_momentum) - Spring...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Spring 2011 PHYS 172: Modern Mechanics Lecture 20 – Angular momentum Read 11.1 – 11.4 Angular momentum r r r Angular momentum ~ p, ~ r Angular momentum r r ⊥ Angular momentum ~ p, ~ r ⊥ Magnitude of angular momentum of a particle relative to location A sin A A L r p r p θ ⊥ = = A p & A r & sin A r r θ ⊥ = Cross-product Angular momentum of a particle relative to location A A A L r p = × & & & A p & A r & sin A r r θ ⊥ = ( ) ( ) ( ) , , A z y x z y x L yp zp zp xp xp yp =--- & Cross-product: A B × & & sin A B AB θ × = & & A B × & & A & B & ( ) ( ) ( ) , , y z z y z x x z x y y x A B A B A B A B A B A B A B × =--- & & θ See book for more sin A A L r p θ = Examples A A L r p = × & & & A r & A r & p & p & L & L & See book for more examples Multiparticle system tot trans rel K K K = + tot trans rot vib K K K K = + + Split total kinetic energy: Split angular momentum: , A trans A rot L L L = + & & & cm r & 1 r & 2 r & 3 r & 1 p & 2 p & 3...
View Full Document

{[ snackBarMessage ]}

Page1 / 8

Lect20-Phys172s11-(11.1-11.4-Angular_momentum) - Spring...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online