Page 11 - TYPES OF FORCES (FRICTIONAL , GRAVITATIONAL, MAGNETIC AND BOUYANT FORCES)

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e
Frict
l f
a
ion
h
s som
orce
• • Frictional force has some
h
dva
ese a
s w
n
e
disadvantages as well. These are:
disa
ll. T
a
a
g
re:
e
t
s

e
b
twe
c
e
r
o
ts
p
d
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c
c

two
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n

j
e
o
b
o
f
ti
n
Fr
al
.
1
r
1. Frictional force between two objects produces
c
o
i
h e at. T h u s, f r i c ti o n al f o r c e p r o d u c e d b e twe e n
heat. Thus, frictional force produced between
th e mo v i n g p ar ts o f a mac h i n e c au se s th e m to
the moving parts of a machine causes them to
we ar o u t d u e to th e g e n e r ate d h e at.
wear out due to the generated heat.
.
so
u
2. Frictional force also causes the soles of our
e
Fr

le

f
o
2
s
o
also
al
n

o

c
r
o
f
e
c
th
s
r

se
au
ti
i
c
sh o e s an d th e ty r e s o f o u r v e h i c le s to we ar
shoes and the tyres of our vehicles to wear
u
t.
out.
o