Linear/Rotational Practice

Today we did one problem together. Below are the problems that various periods picked.

#39


#40 (this sets up a system of three equations and three unknowns, which you then need to solve)


#87 (this sets up a system of three equations and three unknowns, which you then need to solve)

We then worked on more problems. Whatever you didn't finish in class is homework.

p.263 Conceptual #6 & 12 + p.268 #70, 74, 78

Please remember that your mobiles are due next Wednesday, with next period as a work day. If you build your mobile at home and are afraid it will be destroyed in trasit to school (which OFTEN happens!) you may take a video of it that shows its sticks are straight and that all levels are free to rotate and show  or email me the video.