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Byju's Answer
Standard XII
Physics
Banking of Roads
In the figure...
Question
In the figure, a block of weight
60
N
is placed on a rough surface. The coefficient of friction between the block and the surface is
0.5
. What should be the weight
W
such that the block does not slip on the surface?
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Solution
Since, block does not slip, hence,
T
1
<
f
m
a
x
⟹
T
1
<
μ
m
g
Now, for equilibrium-
T
1
sin
135
o
=
T
2
sin
90
o
=
W
sin
135
o
⟹
T
1
=
W
⟹
W
<
μ
m
g
=
0.5
×
60
×
9.8
⟹
W
<
294
N
=
30
k
g
−
w
t
for block does not slip.
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