Question

please........................fast..........................

Answer 1

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Here's your answer...

The weight of the body is 4 kg wt. Let it be -4 j, vectorially.
Since it is pulled to a side with 3 kg wt, it will vectorially be 3i.
The resultant of this will be 3i-4j.
To counterbalance this foce, the tension must be -3i+4j.
The magnitude of this force will be
$\sqrt{ {3}^{2} + {4}^{2} } = 5$
5kg wt

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