A Child Pulls on a Wagon Handle at an Angle

Multiple Choice

A child pulls on a wagon handle at an angle 37° above the horizontal with a force of 45 N.If the wagon accelerates at 8.1 m/s² horizontally,what is the mass of the wagon? Assume frictional forces are negligible.

A) 4.4 kg
B) 5.6 kg
C) 3.1 kg
D) 3.7 kg