Question: A force of 48.0N is required to start a 50-kg box moving across a horizontal concrete floor. (a) What is the coefficient of static friction

A force of 48.0N is required to start a 50-kg box moving across a horizontal concrete floor.
(a) What is the coefficient of static friction between the box and the floor?
(b) If the 48.0-N force continues the box accelerates at 0.70m/s2. What is the coefficient of kinetic friction?

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