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Byju's Answer
Standard XII
Physics
2nd Equation of Motion
In the figure...
Question
In the figure shown, all surfaces are smooth. Find acceleration of all the three blocks.
A
3
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B
6
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C
10
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D
5
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Solution
The correct option is
D
3
Let
a
be the acceleration of the all three blocks.
Here all three blocks will act as a single body with mass,
m
=
6
+
4
+
10
=
20
k
g
As force on left side is more so it will move to the right. Thus, the equation of motion of the system ,
m
a
=
100
−
40
=
60
N
or
a
=
60
/
20
=
3
m
/
s
2
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