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There is no friction between the box and the surface

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Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +8.9 N and the mass of the box is 3.9 kg. Find the magnitude and direction of when the acceleration of the box is:

(a) +7.9 m/s2,

(b) -7.9 m/s2, and

(c) 0 m /s2.

Reference no: EM13613837

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