Physics, 31.07.2019 17:00 AaronMicrosoft15

Aforce 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?

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Aforce of 21.0 n is required to start a 2.8 kg box moving across a horizontal concrete floor. (a) wh...