What are the rules for executing an underhand serve in volleyball?

Answer 1

To execute an underhand serve in volleyball, the player must stand behind the back boundary line, hold the ball in one hand, and use the other hand to hit the ball below the waist. The serve must be made with an underhand motion, meaning the hand must move upward from below the waist. The ball must clear the net and land in the opponent's court to be considered a legal serve.