A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 3.87m/s along the length ( 1.78m ) of the table at one end, by the time it has reached the other end the puck has drifted a distance 2.43cm to the right but still has a velocity component along the length of 3.87m/s . She concludes correctly that the table is not level and correctly calculates its inclination from the above information.
What is the angle of inclination?