PHY 205 Lecture Notes - Lecture 6: Xz, Mark-To-Market Accounting, Order Of Merit
Linear Momentum Fm
takesmass
intoaccount IF ddp
EE moi mdif.dk ddfy
if EE Opisconserved
FI FI EIztFa iO
I
Beforepushing on cart Veltz 0spitpz0
since is conserved pie pill to afterthepush or min tmiff O
collisions theonlyForce is theone betweenthe
Mtwo masses
ID µ
RT KNewton's 3rdLaw FI FI iEEO
i
Ipis conserved Need2equations
itosolve
problems
Conservation
unison ptP p
tPµ oh Iaconservationof
before after momentum momentum
Econservation
of
energy
What happens to theenergy
spring
bumpers the Ke is conserved
ElasticCollisionst
kinetic enemy isconserved
perfectlyelks
tie
Inelastiucollis
Kinetic energy NOTconserved
fully inelastic the twomasses arestucktogether
Problemett elastic collision at aidentical masses
mi Mei m
write 2equations Vyo
20
Find VVrafter
thecollision
Conservahunef
Momentum Conservation ofEnergy
tu to Mtv tmrw my to Amy it m
yzaYi
YiatYza 412 Via tYzat
111 aYltha
21k 44429 02ha ha yotha 24Katha
when 424 0Yzu 111 0Yza14
Via VI14 a
systems whenthe
onlyforce isthe
internalforce
ex explosion
Force betweenzobjects EF 0momentum
is conserved
Problem 2AT momentumisconserved
elastic collision mmz
µatpest since
the
collision
iselastic KE isconserved
Millo MVtmz 12mi yo Vi Maltz momentum
goliffof
squares
M2µmv2mzyzz mVR VT imzki energy
mNotVi Vo Vi Me122
egg Hoth kHIM
Miyo Vi MzµotV mzt
assumingYo Vi MMa VMi Mi Vo
Document Summary
Ee moi mdif. dk ddfy if ee o p isconserved. Beforepushing on cart veltz 0 since is conserved pie pill spitp z. 0 to afterthepush or min t miff o collisions. I p is conserved unison p before tp p after tp theonly force is theone betweenthe two masses. What happens to theenergy the ke is conserved springbumpers. Kinetic energy notconserved fully inelastic the twomasses arestucktogether. Problemett elastic collision at a identical masses write 2equations mi mei m. Conservation of energy yzayi my to amy it m. Via t yzat tha 24katha systems whentheonlyforce istheinternalforce ex explosion. Millo m v tmz 1 2 mi yo vi maltz momentum. Hoth k egg assumingyo vi goliffofsquares m vr vt i m z ki m notvi vo vi me122 energy. Ya yo t mz m yo mztmltmz m tm ma tm. Mivo tmzvoc mill m vo it yam21102212mw 12m 2 tmz 1 2.
