# If a #5 kg# object moving at #6 m/s# slows to a halt after moving #2 m#, what is the coefficient of kinetic friction of the surface that the object was moving over?

##### 1 Answer

Jan 25, 2018

#### Answer:

The coefficient of kinetic friction is

#### Explanation:

The mass of the object is

The initial speed of the object is

The final speed of the object is

The distance is

Apply the equation of motion

to calculate the acceleration

The acceleration is

According to Newton's Second Law

The frictional force is

The acceleration due to gravity is

The normal force is

The coefficient of kinetic friction is