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**Hint:**We sketch the point of interest, all forces acting on it, and resolve all force vectors into x– and y–components to create a free-body diagram. Every object in the problem requires a separate free-body diagram.

**Complete step by step answer:**

Let us consider that the acceleration of rope is $a$ which rotates in clockwise direction. Then the acceleration of ${m_1}$ will be $(a + 1.2)$ and the acceleration of ${m_2}$ will be $( - a + 2)$. So, the final diagram is as follows:

Now, let us make a free body diagram for the two masses.

Calculating the net force we will get two equations.

For the first mass:

$T - 40g = 40(a + 1.2) \\

\Rightarrow T - 40(10) = 40(a + 1.2) \\

\Rightarrow T - 400 = 40a + 48 \\

\Rightarrow T = 40a + 448 \\ $

For the second mass:

$T - 60g = 60( - a + 2) \\

\Rightarrow T - 60(10) = 60( - a + 2) \\

\Rightarrow T - 600 = - 60a + 120 \\

\Rightarrow T = - 60a + 720 \\ $

Comapring the above two equations we get,

$40a + 448 = - 60a + 720 \\

\Rightarrow 100a = 272 \\

\Rightarrow a = 2.72m.{\sec ^{ - 2}} \\ $

Now, lets calculate the value of Tension using this value

$T = - 60a + 720 \\

\Rightarrow T = - 60(2.72) + 720 \\

\Rightarrow T = - 163.2 + 720 \\

\Rightarrow T = 556.8N \\ $

Hence, option (B) is correct as Tension in the rope is 556.8N.

Now, we will calculate the individual acceleration of each mass

${a_1} = a + 1.2 \\

\Rightarrow {a_1} = 2.72 + 1.2 \\

\Rightarrow {a_1} = 3.92\,m.{\sec ^{ - 2}} \\ $

Similarly,

${a_2} = - a + 2 \\

\Rightarrow {a_2} = - 2.72 + 2 \\

\Rightarrow {a_2} = - 0.72m.{\sec ^{ - 2}} \\ $

Now we should calculate the time when both the masses will be in the same horizontal height. Hence, we will use the following formula,

$s = ut + \dfrac{1}{2}a{t^2} \\

\Rightarrow 5 = 0(t) + \dfrac{1}{2}(2.72){t^2} \\

\Rightarrow 10 = 2.72{t^2} \\

\Rightarrow {t^2} = 3.67 \\

\therefore t = 1.48\sec $

Therefore, Option (c) is also correct as time after which they will be at the same horizontal level is 1.47 sec.

**Hence, we conclude that option B and option C are the correct answer.**

**Note:**Objects are not often subjected to four powers. The number of forces represented by a free-body diagram can be one, two, or three in some situations. The number of forces that must be drawn in a free-body diagram is not a hard and quick guideline. Drawing free-body diagrams has only one rule: represent all of the forces that occur with that entity in the specified case.

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