Repeating Time Period

DoNow: Three 10040 kg point masses are separated by a distance of 0.082 m and form an equilateral triangle. Determine the magnitude and direction of the attractive force at each mass and the acceleration any mass would experience at the center of the arrangement. Explain. (notes)

AIM: I can describe the variables and relationships in Newton's Law of Universal Gravitation and how the attractive force is related to acceleration and centripetal acceleration.

Activities:
- Submit 'bout That Moment HW
- Tableshare Review All Twisted Up HW & Rotating Mass Investigation Final Version CER
- 1992 AP Physics Q1 & A1
- Remember that Timeperiod HW

Textbook Review: Ch 12.1-.2

Homework:
Remember that Timeperiod HW, All Twisted Up HW, Rotating Mass Investigation CER

Coming Up:
My Head Spins
Rotating Mass Investigation Final Version CER Due: Wed., 18Feb15
Semester Photo Project, Photo 2 & 3 Due: 23Feb15
Torque & Period TEST, after Lunar New Year.