Warmup #4

Vectors & Galilean Relativity

Course

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Please type your LAST NAME and LAST FOUR SS# digits:

IN:
The first three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle. Questions 4 is your opportunity to suggest what we should emphasize today and how.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.


1. A vector A is added to a vector B. If the magnitude A is greater than the magnitude B, then the magnitude of the resultant vector must be between:

  1. 2A and B
  2. A and A+B
  3. A+B and A-B
  4. B-A and B



2. You drive to a city 160 km distant, in a direction 35 degrees north of east. Express your displacement vector, Dr, in unit vector notation, using a coordinate system with the x direction eastward and the y direction northward.



3. What is A.B?

  1. AB cosq
  2. AB sinq
  3. AB
  4. A+B



4. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):




You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

I received no help from anyone on this assignment.