A 2.0 kg block slides down a flat incline. At one instant, the block is 3.0 m above the bottom of the incline and has a speed of 1.0 m/s down the incline. If the incline is 5.0 m long, and the coefficient of kinetic friction between the block and the incline is μk = 0.75, what is the block’s speed when it reaches the bottom of the incline?