What is the coefficient of static friction

Reference no: EM13311948

A force of 21.0 N is required to start a 2.8 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 21.0 N force continues, the box accelerates at 0.50 m/s2. What is the coefficient of kinetic friction?

Reference no: EM13311948

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