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What is the tension in the string attached to the
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Answer #1

Let the tension in the string attached to the wall on the right be T.

The vertical component of T is balances with weight of the 5 kg block.

So, T cos 30 = (5kg x9.8m/s 2)

                 T = 49 N /(cos 30)

                    = 49 N /(0.866)

                    = 56.58 N

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