Summary 11 to 12

Kinematics

ctor quantity
physical
thathasbothmagnitude force Displacement
directionAcceleration
velocity

larQ quantity
physical thathasmagnitudeonlySpeedDistanceTime Mass

vector the
Hant effect
thesame
has
which
vector
single astheoriginalvectorsacting
together



ance thelength fpathtravelled S

lacement achangeinposition

ed therate tchange tdistance s

rate change positionrate
city the
displacement rate change displacement r

Average ratefchange A displacement
Instantaneous intime
Vataspecificinstantmoment

celeration t A
rate change velocity




lewton's Laws

onanyobjon nearits
theEarthexerts
force surface
ghtfg gravitational



rmal f Fn the force exerted
bya
surfaceonan
objin
contactw
it

rional F the fthatopposesthemotion t anobj file which
theobjisin
contact




1 Anobjcontinuesin astate rest
unless
uniformmovingwconstantvelocity itis acteduponbya netresultant
force


rtia thepropertyanobjthatcausesittoresista changeinitsstatetrest
uniformmotion



When a NetfFnetisappliedtoanobj tmassm it inthedirection thenetf
accelerates




Acceleration a is α tothenet f tobemass