Two block A and B each of mass 1 kg are connected by light string as shown in the figure. Pulleys are smooth and light. The coefficient of static friction for all surfaces is u=0.5. The minimum value of at which blocks begin to slide is tarr? (n/6). Find the value of n. (take g=10 m/s2) B 1
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0
Answer:
Sorry dude don't know
Answered by
1
Explanation:
Let the masses be m
A
,m
B
respectively.
For just slipping case, driving force just equals the frictional force.
T=m
B
g,
Driving force=Tcos(60
0
)=
2
m
B
g
Normal acting on A=m
A
g−Tsin(60
0
)=m
A
g−m
B
gsin(60
0
)
f=μN=0.2×g×m
A
−m
B
sin(60
0
)
f=Tcos(60
0
)
2(m
A
−m
B
2
3
)=m
B
×
2
10
m
B
m
A
−
2
3
=
2
5
m
A
:m
B
=
2
5
+
2
3
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