A mass of 150 kg is hung with the help of two strings as shown in the figure. Red and purple are two strings. Calculate the tension in the horizontal string.
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Explanation:
Solution
From FDB of 3 blocks.
T
1
=10a ....(1)
T
2
−T
1
=20a ....(2)
60−T
2
=20a ....(3)
addingequation(1)+(2)
T
2
=30a (4)
from (3) and (4) equation
60=50a
a=
5
6
=m/s
2
now
T
1
=10a=
5
10×6
=12N
T
2
=30a=
5
30×6
=36N
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