To solve for the distance the object will
travel before coming to a stop, we can apply the work-energy theorem, which
states that the work done by the net force is equal to the change in kinetic
energy.
Work-Energy Theorem
The work done by the frictional force
causes the object to lose all its initial kinetic energy and come to rest. So,
the change in kinetic energy is:
Since the object comes to rest, .
Thus, the change in kinetic energy is:
Work Done by Friction
The work done by the frictional force
is: