COALITION MATH 151, FALL 1997 Group II (S. A. Fulling, assisted by Cary Lasher) Day 10.2 1. Restate the vectors/related rates problem from last time. Clarify concepts of relative position and relative velocity. Leave the paradox as a challenge for next time. 2. Team exercises on areas A. Standard "area under curve" except that function is negative B. Area between two intersecting curves REASONABLY SUCCESSFUL 3. A harder area problem (boundaries 2y^2 = x + 4 and x = y^2). Lessons: A. Sometimes it is better to slice horizontally. B. Make sure you include ALL the area and NOTHING ELSE. It may be necessary to cut the region into pieces. HAD TO STOP IN THE MIDDLE OF THIS. 4. If time permits, begin lecture on work and line integrals (see next day).