If a #4 kg# object moving at #6 m/s# slows to a halt after moving #35 m#, what is the coefficient of kinetic friction of the surface that the object was moving over?
Since the object is moving on a plane surface, the kinetic friction experienced by the object will be
So, using the third kinematic equation
The object is said to have come to a halt so that means
So, we know it travels a distance of
Solving it yourself, you now understand that things look odd even if they are right.