An industrial die machine is sued to stamp out holes in a piece of sheet alumnum. the die strikes te surface of the sheet of metal at a speed of $10$m$/$s passes through the $\mathrm{.}635$cm thick sheet, reverses its direction and is again moving at $10$m$/$s as it passes the top surface of the metal moving upward, what is the avg acceleration of the die tool as it passes down through the metal and back up again? what is the direction of the acceleration