On a spacecraft, two engines are turned on for 684 s at a moment when the velocity of the craft has x and y components of v0x = 4370 m/s and v0y = 6280 m/s. While the engines are firing, the craft undergoes a displacement that has components of x = 4.11 × 106 m and y = 6.07 × 106 m. Find the x and y components of the craft's acceleration?