Solve this following

Question:

Two masses $\mathrm{m}_{1}=5 \mathrm{~kg}$ and $\mathrm{m}_{2}=10 \mathrm{~kg}$, connected by an inextensible string over a frictionless pulley, are moving as shown in the figure. The coefficient of friction of horizontal surface is $0.15$. The minimum weight $m$ that should be put on top of $m_{2}$ to stop the motion is :-

  1. $27.3 \mathrm{~kg}$

  2. $43.3 \mathrm{~kg}$

  3. $10.3 \mathrm{~kg}$

  4. $18.3 \mathrm{~kg}$


Correct Option: 1

Solution:

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