A remotely operated submersible is moving north. Its propeller provides a force of 8.0 kN8.0\ \text{kN}8.0 kN northwards and water resistance provides a force of 12.0 kN12.0\ \text{kN}12.0 kN southwards.
Calculate the resultant force acting on the submersible.
The propeller force is increased until it is equal to the water resistance. Evaluate the claim that this change will make the submersible stop.