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Metal Slot

A small block of mass m is gently placed in the slot at 7-î at t=0 and is constrained to move only along the slot The distance r of the block at time Metal Slot

ช้าง777สล็อต Metal Slot A small block of mass m is gently placed in the slot at 7-î at t=0 and is constrained to move only along the slot The distance r of the block at time