Answer
A force of 65 N is required to move the box at a steady speed.
If $\mu_k = 0$, according to Newton's first law, no force is required to keep the box moving at a steady speed.
Work Step by Step
To move the box at a steady speed, the applied force $F$ should be equal to the force of friction $F_f$.
$F = F_f$
$F = mg\mu$
$F = (22 ~kg)(9.8 ~m/s^2)(0.30)$
$F = 65 ~N$
A force of 65 N is required to move the box at a steady speed.
If $\mu_k = 0$, according to Newton's first law, no force is required to keep the box moving at a steady speed.
