Armenia Physics Unified Exam Practice Questions - Unified Entrance Examination - Physics (Ֆիզիկա) Exam

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A body of mass m = 4 kg is pulled horizontally along a flat surface by a force F = 20 N. If the coefficient of kinetic friction between the body and the surface is mu = 0.25 (take g = 10 m/s²), what is the acceleration of the body?

2.5 m/s² 5.0 m/s² 1.5 m/s² 0 m/s²

Correct Answer:

2.5 m/s²

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