An object slides on a level floor. It slows and comes to a stop with a constant

Question

An object slides on a level floor. It slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s^2. What is the coefficient of kinetic friction between the object and the floor? A) 0.48 B) 0.24 C) 0.12 D) it is impossible to determine without knowing the mass of the object.
Show free body diagram if possible. An object slides on a level floor. It slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s^2. What is the coefficient of kinetic friction between the object and the floor? A) 0.48 B) 0.24 C) 0.12 D) it is impossible to determine without knowing the mass of the object.
Show free body diagram if possible. A) 0.48 B) 0.24 C) 0.12 D) it is impossible to determine without knowing the mass of the object.
Show free body diagram if possible.

Explanation / Answer

as we know that friction =ma=umg

a = u g

u = a/g = 2.4/9.81= 0.24

so the answer is 2.

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