Final answer:
The penalty for a player who is not properly equipped is to remove that player for at least one down.
Step-by-step explanation:
The penalty for a player who is not properly equipped is to remove that player for at least one down. This means the player must leave the field of play and cannot participate in the game for the next play or down. It is essential for players to be properly equipped to ensure their safety and follow the rules of the game.