A siren moving with a constant speed emits a sound wave with frequency fo. The graph shows the frequency you hear as you stand at rest at x = 0 on the x-axis. Which of the following is the best description of the siren's motion? (a) it moves from left to right and passes you at t = 2s, (b) it moves from right to left and passes you at t = 2s, (c) it moves toward you for 2s, but doesn't reach you, then reverses Jo- direction at t = 2s, and moves away, (d) it moves away from you for 2s, then reverses direction at t = 2s and moves toward you but doesn't reach you, (e) none of the above are correct. 0 1 2 3 4 1 (s)

icon
Related questions
Question
**Question:**

A siren moving with a constant speed emits a sound wave with frequency \( f_0 \). The graph shows the frequency you hear as you stand at rest at \( x = 0 \) on the x-axis. Which of the following is the best description of the siren's motion?

Options:

(a) It moves from left to right and passes you at \( t = 2 \, \text{s} \).

(b) It moves from right to left and passes you at \( t = 2 \, \text{s} \).

(c) It moves toward you for 2 s but doesn’t reach you, then reverses direction at \( t = 2 \, \text{s} \).

(d) It moves away from you for 2 s, then reverses direction and moves toward you but doesn’t reach you.

(e) None of the above are correct.

**Graph Explanation:**

The graph displays frequency \( f \) on the y-axis and time \( t \) in seconds on the x-axis. The frequency is \( f_0 \) at \( t = 0 \), increases before \( t = 2 \) seconds, then drops sharply back to \( f_0 \) after \( t = 2 \) seconds, remaining constant thereafter.
Transcribed Image Text:**Question:** A siren moving with a constant speed emits a sound wave with frequency \( f_0 \). The graph shows the frequency you hear as you stand at rest at \( x = 0 \) on the x-axis. Which of the following is the best description of the siren's motion? Options: (a) It moves from left to right and passes you at \( t = 2 \, \text{s} \). (b) It moves from right to left and passes you at \( t = 2 \, \text{s} \). (c) It moves toward you for 2 s but doesn’t reach you, then reverses direction at \( t = 2 \, \text{s} \). (d) It moves away from you for 2 s, then reverses direction and moves toward you but doesn’t reach you. (e) None of the above are correct. **Graph Explanation:** The graph displays frequency \( f \) on the y-axis and time \( t \) in seconds on the x-axis. The frequency is \( f_0 \) at \( t = 0 \), increases before \( t = 2 \) seconds, then drops sharply back to \( f_0 \) after \( t = 2 \) seconds, remaining constant thereafter.
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

Blurred answer