Acceleration

PREFLIGHT

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The following three questions refer to the material you were to read in preparation for the lesson.

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1. Multiple Choice

What is the correct relationship between these 3 vectors?
B - A = C
A + B = C
A - B = C
A + B = -C
Other (please explain below)

2. Range

Projectile motion has been important since before David killed a famous giant with a slingshot. To get the maximum distance (range), at what angle should David unleash the rock? Would this angle change if the target (Goliath) were at a higher elevation than David? Lower elevation?

honors extra

I just moved to Illinois from Alabama, and packed my belongings into 120 boxes. Sometimes things just wouldn't fit. What is the longest curtain rod I can pack into a 1 meter cubical box? How many curtain rods of that length can I pack in the box? What is the angle between curtain rods? (Hint: use vectors to describe the curtain rods and take the dot product.)

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.