Static friction is normally larger than moving friction.
This demonstration will provide a dramatic visualization of this concept. Incline a plane until a battery-operated vehicle doesn't quite slide down it. Then switch the motor on. The vehicle should slide down the incline, with its wheels moving forward, showing that the static coefficient of friction is usually higher than dynamic, moving, coefficient of friction. C. M. Parry Woodrow Wilson Institute Great Ideas for Teaching Physics, West Publishing Co., St. Paul, MN 1991.