A dresser is being pushed by one person and pulled by another(as shown) such that is slides across the floor at constant velocity. If the coefficient of kinetic friction between the dresser and the floor is 0.5, and the dresser weights 500N, then how large is the force F shown in the diagram A) 247 N B) 185 N C) 145 N d) 309 N e) 212 N

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!