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  4. The friction coefficient between the table and the block shown in figure is 0.2 . Find the tension in the string which is connected with both 5kg blocks. <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-2z9uvc2v6fpdpm9x.jpg />

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Q. The friction coefficient between the table and the block shown in figure is $0.2$ . Find the tension in the string which is connected with both $5kg$ blocks.
Question

NTA AbhyasNTA Abhyas 2020

Solution:

Solution
$f_{l}=\mu mg=0.2\times 10\times 5=10N$
$T_{1}-50=5a....\left(i\right)$
$T_{2}-T_{1}-10=5a....\left(ii\right)$
$150-T_{2}=15a....\left(iii\right)$
From eq. $\left(i\right)\left(ii\right),\left(iii\right)$
$T_{1}=68N$