There is an object with a mass of 2kg on a smooth horizontal table. It is subjected to two forces at an angle of 60 degrees to each other in the horizontal direction. The magnitude of the two forces is 14N. How much is the acceleration of the object? The solution process is given

Through orthogonal decomposition of the two horizontal forces at an angle of 60 degrees to each other, the resultant force of the object in the horizontal direction can be obtained. It can be seen from the figure that f = 2fcos30
According to Newton's second law, 2fcos30 = ma
a＝2Fcos30/m＝2Fcos30/2＝Fcos30＝12.1

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