The Correct Answer and Explanation is:
The image provided contains a question, “Identify the arrows that show input force,” but it does not include the corresponding diagram with arrows. Therefore, it is not possible to give a specific answer by identifying certain arrows. However, I can provide a comprehensive explanation of what an input force is, which will help you identify the correct arrows once you have the complete diagram.
An input force, also known as the effort force, is the force that is applied to a machine or a system to make it operate. It is the initial push or pull exerted by a person, an animal, or a motor to get the work started. When you analyze a diagram in physics, the arrow representing the input force will originate from the source of the effort and point in the direction that the force is being applied to the machine.
The concept of input force is especially important when studying simple machines like levers, pulleys, and inclined planes. For instance, if you are using a crowbar to lift a heavy object, the input force is the force you apply by pushing down on the handle of the crowbar. An arrow pointing downward on the handle would represent this input force. In another example, imagine using a pulley to lift a flag up a flagpole. The input force is the force you exert by pulling down on the rope. The arrow showing this downward pull on the rope would be the input force arrow.
This force is distinct from the output force, which is also called the resistance or load force. The output force is the force that the machine exerts on the object it is acting upon. In the crowbar example, the output force is the upward force the crowbar applies to lift the heavy object. The primary purpose of many simple machines is to create a mechanical advantage, where the input force required is less than the output force generated, making a task easier to perform.
To find the correct arrows on your diagram, you should look for the force that is being actively applied to the machine to make it function.
