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friction, Law of friction, little-boy-pushing-stack-books-600w-1716585925,…
friction
sliding friction
during movement
less time for
locking point
friction medium
static friction
enough time
for locking point
moving from rest
friction high
rolling friction
very less time
for locking point
during movement
friction low
wheel
convenient to
pull
push
reduce
friction
bag whit rolling
friction
depend
on shape
desing
aeroplanes
aero dynamics
on fluid nature
on speed
exerts friction
on object
move through object
good
moving object
can't be stop
if no friction
need it
holding thing
waking ,running
increas
by
break pad
vehicles
sole spikes
shoes
Fractors
Irregular surface
get inter locked
Friction force
opposes
relative motion
Greater
if 2 surface
pressed harder
act on
both surface
causes
inter locking for
grooves
F oc
Normal force
bad
wear and tear
shoes , tyres
reduce
by
lubricants
for smooth movement
ex oil ,grease
ball bearing
inter locking
polishing
generates
heat
waste energy
machine
Law of friction
gases and liquids
