2d Kinematics Problem Help, Please?

A jet-powered hockey puck is sliding on a frictionless 1.5 meter tall table at a speed of 3.0m/s. Just as the puck leaves the table its jet turns on. The jet creates a straight-forward-horizontally-parallel-w… variable acceleration of a(t) = (2.5m/s^3)t + 0.5m/s/s. How far from the table does the puck land?