http://img102.herosh.com/2011/11/13/358660018.png
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The horizontal component of the 145N is 145 cos 19 = 137.1 N
The mass of the box, assuming earth surface, is 225/9.8 = 22.96 kg
F = ma
a = F/m = 137.1 / 22.96 = 5.97 m/s²
none of your answers are correct.
The mass of the box, assuming earth surface, is 225/9.8 = 22.96 kg
F = ma
a = F/m = 137.1 / 22.96 = 5.97 m/s²
none of your answers are correct.