### Physics Exam Preparation: Understanding Net Forces and Free-Body Diagrams#### 1. Identifying Net Force Acting on an Object**Question:** Which of the following provides the best explanation for how you can tell, based on observing an object, whether or not there is a (non-zero) net force acting on it?“If the object is ____, then there’s definitely a net force acting on it.” (A) moving (B) accelerating (C) traveling at a high constant speed (e.g., 100 miles per hour) (D) changing color, temperature, mass, or size**Best answer:****Explain your reasoning:**---#### 2. Determining the Correct Free-Body Diagram (FBD) for an Object Accelerating Upward**Question:** Which of the following FBD’s (Free-Body Diagrams) is most likely to represent an object that is accelerating upward?- **Diagram (A):** Arrow pointing upward, a longer arrow pointing downward, and two horizontal arrows pointing in opposite directions.- **Diagram (B):** Two horizontal arrows pointing in opposite directions without vertical arrows.- **Diagram (C):** Arrow pointing downward, a longer arrow pointing upward, and two horizontal arrows pointing in opposite directions.- **Diagram (D):** Arrow pointing upward, arrow pointing downward, and two horizontal arrows pointing in opposite directions (with the same length as vertical arrows).**Best answer:**---### Detailed Explanation of DiagramsIn the given diagrams:- **Diagram (A):** - Upward arrow (shorter) - Downward arrow (longer) - Two horizontal arrows of equal length- **Diagram (B):** - Two horizontal arrows of equal length - No vertical arrows- **Diagram (C):** - Upward arrow (longer) - Downward arrow (shorter) - Two horizontal arrows of equal length- **Diagram (D):** - Upward arrow (equal length to downward arrow) - Downward arrow (equal length to upward arrow) - Two horizontal arrows of equal length#### Explanation:- For an object to be **accelerating upward**, the upward force must be greater than the downward force acting on it. Hence, Diagram (C) is the correct FBD. These questions and the corresponding explanations aim to help students understand the relationship between

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Description: ### Physics Exam Preparation: Understanding Net Forces and Free-Body Diagrams#### 1. Identifying Net Force Acting on an Object**Question:** Which of the following provides the best explanation for how you can tell, based on observing an object, whe

Newton's second law of motion is F=ma Where F is the force acting on a body, m is the mass of the…

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1. Which of the following provides the best explanation for how you can tell, based on observing an object, whether or not there is a (non-zero) net force acting on it? "If the object is then there's definitely a net force acting on it." (A) moving (B) accelerating (C) traveling at a high constant speed (e.g. 100 miles per hour) (D) changing color, temperature, mass, or size

1. Which of the following provides the best explanation for how you can tell, based on observing an object, whether or not there is a (non-zero) net force acting on it? "If the object is then there's definitely a net force acting on it." (A) moving (B) accelerating (C) traveling at a high constant speed (e.g. 100 miles per hour) (D) changing color, temperature, mass, or size

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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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