Conservation of Angular Momentum PREFLIGHT
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The following three questions refer to the material you were to read in preparation for the lesson.

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. Don't submit more than once. (If you absolutely HAVE to resubmit it, put a note on the end to that effect.)

Homework will be collected next Friday, 11/15 for both chapters 11 and 12.


Torques are not just Celtic jewelry


A wheel rolls without slipping while pulled by a string wrapped around its circumference as shown in the animation (position is given in meters and time is in seconds). Which animation properly depicts the physical situation?

Start Animation a                     Start Animation c
Start Animation b                      Start Animation d

Animation a
Animation b
Animation c
Animation d
Other (please explain below)



honors extra

Conservation of Angular Momentum

Sarah, with mass m and velocity v, runs toward a playground merry-go-round and jumps on at its edge. Sarah and the merry-go-round (mass M, radius R, and moment of inertia I = cMR2) then spin together with a constant angular velocity wf. If Sarah's initial velocity is tangent to the circular merry-go-round, what is wf? Start



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.