With a propeller.
Terminal velocity, where the driving force = drag force from the water
If a boat's propeller provides a steady force, the boat can move at a constant velocity if the force provided by the propeller is balanced by the opposing forces like water resistance, friction, and drag. Once these forces reach equilibrium, the boat will continue to move at a steady speed.
No, the propeller will only work if the engine is running.
A boat typically uses a propeller as a device to move through water. The propeller works based on Newton's third law of motion, where the boat pushes water backwards with the propeller blades, causing an equal and opposite reaction that moves the boat forward. This action follows the principles of thermodynamics in terms of converting energy from the boat's engine into mechanical work to propel the boat forward.
The stern of a boat is the rearmost portion of the boat or ship. The stern usually has a tiller or other steering device that helps the boat turn, The stern might also have the motor of the boat if the boat has an outboard motor. By tilting this motor from one side to another it helps the boat turn. The propeller in this area also makes the boat move through the water.
In theory yes you can. As long as the engine will fit in the boat, is waterproofed, and can be rigged to move the boats propeller.
Water moves the boat by exerting a force on it in the opposite direction to the movement of the boat. When the propeller of the boat rotates, it pushes water backwards, which, in turn, propels the boat forward. This reaction force from the water helps move the boat through the water.
The propeller.
A boat moves at a constant velocity if the force provided by the propeller exactly balances the resistive forces such as drag and friction acting on the boat. Once the forces are balanced, the boat will continue moving at a constant velocity as long as the propeller keeps applying the same force.
Prevent Propeller Strikes
A rubber band boat works much like a rubber band airplane. First you need to build the boat itself. Then you need to make a propeller. The propeller shaft needs to run through the inside of the boat, not below the boat. With the prop below the water. The propeller shaft should not go the full length of the boat. About halfway through put a loop in the shaft. Then to the front of the boat attach a rubber band. Then run the rubber band through the loop in propeller shaft. Now twist the prop and the rubber band should twist around and around. When it's good and tight let go and the propeller should spin. Allowing the boat to move forward in the water. Mind you the shaft needs to be a thin piece of metal, as it will be difficult to make it water tight.