The system shown in the figure consider of a light , inextenslible cord, light, frictionless

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The system shown in the figure consider of a light , inextenslible cord, light, frictionless pulley, and blocks of equal mass. Notice that block `B` is attached to one of the pulleys. The system is initial held at rest so that the ground . The blocks are then released. Find the speed of block `A` at the moment the vertical separation of the blocks is `h`.
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while A moves a distance of L, B moves a distance of L/2. not 2L

amingholami