Physics, 02.04.2021 07:40 teacherpreacher

Please help!! the answer is 29 m/s/s but I don't know how they got that, can someone explain please? An object of mass 1.5 kg is moving forwards along the floor against an applied force of 40.0 N [backwards]. If the coefficient of kinetic friction is 0.25, determine the acceleration of the object.

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Please help!! the answer is 29 m/s/s but I don't know how they got that, can someone explain please?...