Two masses $A$ and $B$ of $10\,kg$ and $5\,kg$ respectively are connected with a string passing over a fricionless pulley fixed at the corner of a table as show $n$ in figure. The coefficient of friction of $A$ with the table is $0.2$ . The minimum mass of $C$ that may be placed on $A$ to prevent if from moving is equal to $...........\,kg$
Two masses $A$ and $B$ of $10\,kg$ and $5\,kg$ respectively are connected with a string passing over a fricionless pulley fixed at the corner of a table as show $n$ in figure. The coefficient of friction of $A$ with the table is $0.2$ . The minimum mass of $C$ that may be placed on $A$ to prevent if from moving is equal to $...........\,kg$
- A
$5$
- B
$10$
- C
$15$
- D
$0$
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