I. Inertia is the property of matter that prevents it from moving.
II. Inertia is the property of matter that keeps it moving with the same speed.
III. Based on the Law of Interaction, the reaction force is stronger than the action force. An example is the propeller’s action that creates a reaction force that moves the vessel.
IV. The buoyant force supporting the vessel must be higher than the weight of the vessel to prevent it from sinking.
1. What can be concluded from the statements above?
All statements are correct.
Statements I and II are correct.
Statements I and III are correct.
Statements I and IV are correct.
Statements I, III, and IV are correct.
To determine the correct conclusion from the given statements, we need to evaluate each statement individually:
I. Inertia is the property of matter that prevents it from moving.
This statement is incorrect. Inertia is actually the property of matter that makes it resist changes in its state of motion, whether that is rest or uniform motion in a straight line.
II. Inertia is the property of matter that keeps it moving with the same speed.
This statement is also incorrect. Inertia does not keep matter moving at the same speed. Inertia allows an object to maintain its current state of motion, whether that is at rest or in motion with a constant speed.
III. Based on the Law of Interaction, the reaction force is stronger than the action force. An example is the propeller’s action that creates a reaction force that moves the vessel.
This statement is incorrect. According to Newton's third law of motion, the reaction force is equal in magnitude but opposite in direction to the action force. This means that the reaction force is not necessarily stronger than the action force.
IV. The buoyant force supporting the vessel must be higher than the weight of the vessel to prevent it from sinking.
This statement is correct. According to Archimedes' principle, an object immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object. For an object to float, the buoyant force must be greater than or equal to the weight of the object.
Based on the evaluation of each statement, the correct conclusion is:
Statements I and IV are correct