A child pulls a wagon with a force of 16 N by a handle making an angle of 20 degrees with the horizontal. If the wagon has a mass of 4.9 kg, to the nearest hundredth of a m/s2 what is the acceleration of the wagon?

Answer 1

[16 * cos(20º)] / 4.9

the values in the problem are to 2 significant figures
... not sure about hundredths accuracy