metal slot 588

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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 Metal Slot

ตี๋น้อย77 สล็อต 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