A 20-kg crate is initially at rest on a level floor. A maintenance worker attaches a light, uniform rope to the crate and pulls on the rope so that the tension is 120 N and is parallel to the ground. As a result, the crate accelerates at a constant rate of 1.5 m/s<. What is the coefficient of static friction between the crate and the floor?

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: