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Lecture 2 Motion along a straight line (Sec 2.1 – 2.4)

· Velocity: Avg speed, avg velocity (PQ 2-1)

· Time curves of x, v and a (PQ-2)

· Displacement = Area under v-curve (PQ2-10)

· Vertical motion of a ball: v and s as a function of t.

Announcements:

• Instructor’s help session today in RLM4.102.
1. It will begin at 4pm.
2. It will end when all questions are answered.
• Weekly instructor’s 303K/GE session begins on 9/2(Tuesday): 3:30-4:20, RAS 218.
• Plan to complete HW1 by this weekend.
• Review Chapter 1 and Chapter 2 up to 2.4 of the textbook, and corresponding questions in PQ library.
• Read the remainder of chapter 2.
• If the Iclicker system is ready, we will use it next Wednesday. Check-list:
1. Remember to enter your Iclicker serial number in the Quest system for this class.
2. Writedown your “box number” in your Phy303K notebook.
3. Bring your I-clicker to every class from next Wednesday on.

• Email:
• If your email is not answered in 2 days, please send it again. On the subject line make sure “Phy303K” is included.
• For all Quest system related questions, please send to our TA mhaley@physics.utexas.com and cc a copy of your email message to me.
• Special thanks to the student who has volunteered to help a classmate with disability.
• Typos on first day handout: The lab accompanying present course is Phy103M. For hw1 due date is 4am, Sep3. W(Tu eve).