A constant force $F$ is applied in horizontal direction as shown. Contact force between $M$ and $m$ is $N$ and between $m$ and $M ^{\prime}$ is $N ^{\prime}$ then
A constant force $F$ is applied in horizontal direction as shown. Contact force between $M$ and $m$ is $N$ and between $m$ and $M ^{\prime}$ is $N ^{\prime}$ then
- A
$N$ or $N ^{\prime}$ equal
- B
$N > N^{\prime}$
- C
$N ^{\prime} > N$
- D
cannot be determined
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