Figure shows a uniform rod of length $30 \,cm$ having a mass $3.0 \,kg$. The rod is pulled by constant forces of $20 \,N$ and $32 \,N$ as shown. Find the force exerted by $20 \,cm$ part of the rod on the $10 \,cm$ part (all surfaces are smooth) is ......... $N$
Figure shows a uniform rod of length $30 \,cm$ having a mass $3.0 \,kg$. The rod is pulled by constant forces of $20 \,N$ and $32 \,N$ as shown. Find the force exerted by $20 \,cm$ part of the rod on the $10 \,cm$ part (all surfaces are smooth) is ......... $N$
- A
$36$
- B
$12$
- C
$64$
- D
$24$
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