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  4. In the arrangement shown, by what acceleration the boy must go up so that 100kg block remains stationary on the wedge. The wedge is fixed and friction is absent everywhere. (Take g=10ms- 2 ) <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-0abbep6datpgw7uk.jpg />

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Q. In the arrangement shown, by what acceleration the boy must go up so that $100kg$ block remains stationary on the wedge. The wedge is fixed and friction is absent everywhere. (Take $g=10ms^{- 2}$ )
Question

NTA AbhyasNTA Abhyas 2022

Solution:

Solution
For block to be stationary $T=800N$
If man moves up by acceleration $a$
Solution
$T-mg=ma$
$800-500=50a$ ,
$a=6ms^{- 2}$