The velocity versus time graph for an object is shown in the diagram below. v (t) --Select-- positive direction B (a) What is the direction of the acceleration of the object for each of the indicated time intervals? A to B negative direction B to C positive direction C to D the acceleration is zero D to E positive direction negative direction D (b) What is the direction of the net force acting on the object for each of the indicated time intervals? A to B --Select--- B to C C to D D to E the net force is zero E t (s)

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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**Velocity-Time Graph Analysis**

The diagram above displays a velocity versus time graph for an object, where:

- The horizontal axis represents time \( t \) in seconds.
- The vertical axis represents velocity \( v(t) \).

Points on the graph:

- **A** to **B**: The graph shows a linear decrease in velocity, indicating negative acceleration.
- **B** to **C**: The velocity increases linearly, indicating positive acceleration.
- **C** to **D**: The velocity remains constant, meaning the acceleration is zero.
- **D** to **E**: The velocity increases again, indicating positive acceleration.

### Questions

(a) **Direction of Acceleration**

Determine the direction of the acceleration of the object for each of the indicated time intervals:

- **A to B**: *Negative direction*
- **B to C**: *Positive direction*
- **C to D**: *Acceleration is zero*
- **D to E**: *Positive direction*

(b) **Direction of Net Force**

Identify the direction of the net force acting on the object for each of the indicated time intervals:

- **A to B**: *Select the appropriate direction*
- **B to C**: *Positive direction*
- **C to D**: *The net force is zero*
- **D to E**: *Positive direction*

**Note:** The net force direction is aligned with the acceleration due to Newton's second law of motion.
Transcribed Image Text:**Velocity-Time Graph Analysis** The diagram above displays a velocity versus time graph for an object, where: - The horizontal axis represents time \( t \) in seconds. - The vertical axis represents velocity \( v(t) \). Points on the graph: - **A** to **B**: The graph shows a linear decrease in velocity, indicating negative acceleration. - **B** to **C**: The velocity increases linearly, indicating positive acceleration. - **C** to **D**: The velocity remains constant, meaning the acceleration is zero. - **D** to **E**: The velocity increases again, indicating positive acceleration. ### Questions (a) **Direction of Acceleration** Determine the direction of the acceleration of the object for each of the indicated time intervals: - **A to B**: *Negative direction* - **B to C**: *Positive direction* - **C to D**: *Acceleration is zero* - **D to E**: *Positive direction* (b) **Direction of Net Force** Identify the direction of the net force acting on the object for each of the indicated time intervals: - **A to B**: *Select the appropriate direction* - **B to C**: *Positive direction* - **C to D**: *The net force is zero* - **D to E**: *Positive direction* **Note:** The net force direction is aligned with the acceleration due to Newton's second law of motion.
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