Class notes
Class notes PHYS 1151 (PHYS1151)
- Course
- PHYS 1151 (PHYS1151)
- Institution
- Northeastern University
Forces and Newton's Law Class Notes
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ForcesandNewton'sLawstwo
between
orcesinteraction bodies apushorapun
General
ypesofonce
ContactF orces
LongRangeForce
onesarevectors
Addusingsuperposition
Theeffectofmany
forcesisthe the
s ameas sum
vector ofan
theforces
ypes For ewton's 1stLawanobjectatreststaysartestandanobjectinmotionstaysinmotionwiththesamespeeddirectionunlessactedbya outsi
fame s.gg
objectisatequilibrium if Fo
naar
2 Conceptofinertiaresistanceto acceleration often toasthe
reffered ofinertia
law
3
that withaconstant
moves velocity
NonInertialReferenceFrames
These
areframesthataccelerate
fictitious
forces
innoninertialreferenceframes
exist Newton'ssecond lawof otionThe ofanobjectasproducedbyanetforceisdirectlyproportionaltothe
a cceleration
magnitude forceinthe
ofthenet samedirectionasthe
net
forceand p roportionaltothe
inversely ofthe
mass o bject
É ma
a theeffectofapplyingaforce originalform E IF NotationFobsource force
of
mthei term
nertia to
resistance motion
units F 93 Newton µ
Newton's thirdLaw IfbodyaexertsaforceonbodyBthenbodyBexertsanequalbutopposite
onbody
p Fia
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