what part of the boat helps it to move in the water?

The part of the boat that helps it move in the water is the propeller or the sail, depending on the type of boat. The propeller, which is typically found on motorized boats, spins to create thrust, pushing the boat forward. On sailing boats, the sail captures the wind, generating lift and propelling the boat forward. Both components are essential for harnessing energy to enable movement through water.