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226 Chapter 2 Projectile Video Questions (20pts)
To receive credit:
- -Write all answers in your bound journal
- -2pt if you do not title the entry
- -2pt if you do not date the entry
- SHOW ALL YOUR MATH WHEN APPLICABLE
Video 223 Parabolic Range (include equations and drawings when asked)
- Which projectile angle gives the furthest X-Max?
- Which projectile angle gives the highest Y-max?
- Draw a diagram showing all the angles and their parabolas shown in the video.
Video 224 Parabolic Vector (include equations and drawings when asked)
- Which of the two vector arrows (Vx or Vy) decreases during the video?
- Which of the two vector arrows (Vx or Vy) stays constant during the video?
- If each dot represents 1 sec, draw the vector diagram at time 0, 7, 11, 14, 21 seconds (they can all be on the same figure).
- What force acts constantly on the ball?
- Is there acceleration in the Y-direction?
- Is there acceleration in the X-direction (remember the definition of acceleration)?
- What happens to the Vy vector arrow at 11 seconds? Why?
- Under the parabolic graph, there is a cartesian graph for Vx, explain why it remains a constant line over time (t)?
- Diagram the cartesian graph for Vx.
- Under the parabolic graph, there is also cartesian graph for Vy, explain why the graph starts positive then declines to become zero and finally ends as a negative number?
- Diagram the cartesian graph for Vy.
- Based on what we talked about in class, Should the absolute value of Vy at time 0s be of the same magnitude as Vy at time 21s?
- Why is this the case?
Video 225 Parabolic Soccer (include equations and drawings when asked)
- Watch the video and freeze the frame at 30 seconds.
- Diagram screen shot and explain what is going on between the X and Y components.
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