A wooden block with mass 1.40 is placed against a compressed spring at the bottom of a slope inclined at an angle of 29.0 (point ). When the spring is released, it projects the block up the incline. At point , a distance of 4.15 up the incline from , the block is moving up the incline at a speed of 6.00 and is no longer in contact with the spring. The coefficient of kinetic friction between the block and incline is = 0.45. The mass of the spring is negligible.