Phys2A_F07_Lecture_04

Phys2A_F07_Lecture_04 - The Language of Motion How do you...

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W. P. Beyermann Fall 2007 1 The Language of Motion How do you quantitatively describe motion in terms of position, displacement, velocity, speed and acceleration?
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W. P. Beyermann Fall 2007 2 Example: Sandy walks to class Sandy, who is a student in Physics 2A, is in her dorm room and getting ready for today’s lecture. She realizes that she needs to buy a new pen from the bookstore. She knows that to go from her room in Aberdeen Hall to the bookstore, she has to walk 30° west of south for 250 m. (She once made the trip on her bicycle, which has an odometer and compass.) She also knows that Physics 2000 is 300 m, 15° east of south from her dorm room. If an easy pace for her is 0.75 m/s, will she be able to stop by the bookstore to buy a pen without rushing if class starts in 12 minutes? Neglect the time she sends buying a pen. Model • Treat Sandy as a particle. • Neglect the time she spends buying the pen. • Assume she is able to walk in straight lines between her dorm room, the bookstore, and Physics 2000.
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This note was uploaded on 04/07/2008 for the course PHY 2A taught by Professor Beyermann during the Fall '08 term at UC Riverside.

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Phys2A_F07_Lecture_04 - The Language of Motion How do you...

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