Consider a system of masses M₁ and $M_{2} (M_{1} > M_{2})$ connected by a massless string. In figure (A), the system is pulled by a force F from the side of mass M₁ and in figure (B), the system is pulled by the same force from the side of mass M₂, then

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acceleration of system in both cases is same but tension in the string in case (a) is more than in case (b)

acceleration of system in case (a) is more than in case (b) while tension in the string is same in both cases

acceleration in the two cases is same and tension in the string connecting and is also same.

acceleration of system in both cases is same but tension in the string in case (a) is less than in case (b)

answer is D.

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Detailed Solution

Both the masses will move with same acceleration,

$a = \frac{F}{M_{1} + M_{2}}$

In case(A) $tension = M_{2} a$

In case (B) $tension = M_{1} a$

Since M₁ > M₂ tension in case(A) is less than the tension case(B)

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