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  4. A sphere of mass m is held between two smooth inclined walls. For sin(37 ° )=(3/5) . The normal reaction of the wall 2 is equal to: <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-lsdwy21azwdj.png />

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Q. A sphere of mass $m$ is held between two smooth inclined walls. For $sin\left(37 ^\circ \right)=\frac{3}{5}$ . The normal reaction of the wall $2$ is equal to:

Question

NTA AbhyasNTA Abhyas 2020Laws of Motion

Solution:

Solution
Writing equilibrium equation along the incline of surface 1:
$\Rightarrow \, \, \, N_{2}cos 54^{o}-mgcos ⁡ 54^{o}=0$
$\Rightarrow \, \, N_{2}=mg$