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A block of mass 3 kg is in equilibrium with the help of three identical strings with one end of each string connected with the ceiling and other with the block and the angle between any two strings is 120degrees and all the strings make an angle of 60 degrees with the vertical. Find the tension in the string.

A block of mass 3 kg is in equilibrium with the help of three identical strings with one end of each string connected with the ceiling and other with the block and the angle between any two strings is 120degrees and all the strings make an angle of 60 degrees with the vertical. Find the tension in the string.

Grade:11

1 Answers

Vikas TU
14149 Points
7 years ago
Do components of any one of the strings and write the eqns. in x and y- direction respectively.
Therfore,
in y direcn.
T1cos60 + T2cos60 – T3 = mg
in x direcn.,
T1sin60 = T2sin60.
solve  the eqns.

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