Three identical blocks of mass m on a frictionless surface are connected by massless taut strings. A force F is applied on the rightmost block as shown in the figure below so that each block moves to right with acceleration a. T2 m T, m Applying Newton's second law on the rightmost block: EFx = = ma Applying Newton's second law on the block at the center: EFx = |- T2 = Applying Newton's second law on the leftmost block: EFx= = ma If each block has a mass of 10 kg and is accelerating at 2 m/s2, the magnitude of the tension on the second string is T2 = N.

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