The thing that stops boats from moving is typically an anchor, which is a heavy object lowered to the seabed to secure the vessel in place. Additionally, factors like strong currents, shallow waters, or obstacles in the water can also impede a boat's movement. In some cases, a boat may also be stopped by mechanical issues or a lack of wind for sailboats.
What stops a car from moving forward or backward
When a glacier stops moving and end moraine will be deposited in front of it.
A river is something that has a beginning and an end but never stops moving.
deposition
Friction
drop an anchor of the bow
What happenes when it sense danger is that it stops moving and stairs at what he thing is going to attack then they begin to charge and try to kill its prey :D
Static friction stops an object from moving. It is the force between two surfaces that are not moving relative to each other. Once the object starts moving, kinetic friction comes into play.
An object begins moving when a force is exerted on it, whether it is a push, pull, or some other interaction. To stop an object that is already moving, a force in the opposite direction is applied to slow it down or bring it to a halt.
an object that is moving will keep moving until something stops it
We wouldn't have any thing that relys on boats today.
Stationary Front