Airport luggage delivery system consists of a conveyer belt that carries 15-kg travel bag to the top of a chute 3 metres long and inclined at 25 to the horizontal. At the bottom of the chute, a pair of rubber barrier slow the bag before passengers can pick up. If the bag has an initial horizontal velocity of 50 cm/s when it reaches the slide and the coefficient of friction is 0.1, calculate the velocity at which the bag hit the barrier.