PHYSICS 8A Lecture 11: 11 - Momentum and Collisions
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2 interacting obj other forces : emi # one. tt#desp. -f) impulse . momentum theorem chg in momentum ex. : fallout of window impulse = for snow + concrete but tsnow > tunnel areasunder. , eetito total mom . not conserved ex : shell fired from. @ rest find recoil v : ee+ =o pi =pf =o=mvs +mk , ;y=o , t took ,, k =09 m/s a m=zs. Collisions : elastic : no ke lost inelastic : some ke lost compl . inelastic : all # lost stick together ftp. m. viitmakitmtmdkostff-mmyymy#ffneyifk. nybdem=ikg. Y mk m=uiy in zd ex : findspdtdir of zobj . after all . Html ( on next pp t. ru/s yo . Mtfitmdfztm ,vn+mzvfz mil ,i+mnii=mvi+mzvi milk - vatmdvfz . Viz) divide (2) a) ( 1 ) milk # ( vir"va)=m(v+tk)(vik) (2) (3) E only conserved comp . dist ? after collision. Momentum not cons bf of spring + wall break into 2 parts : subscripts :o . before.
