Chapter 5 Lecture

Chapter 5 Lecture - General Physics I Durig Lewis Survey...

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General Physics I Durig Lewis
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Survey How many questions should be on a test? a) 10 b) 11 c) 12 d) 13 e) 14 f) 15
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Survey A ball is rolled down a slide. The bottom part of the slide is horizontal. If air resistance is negligible, which arrow most nearly represents the velocity of the ball just after it leaves the slide? a) b) c) d) e)
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Survey A ball is rolled down a slide. The bottom part of the slide is horizontal. If air resistance is negligible, which arrow most nearly represents the acceleration of the ball just after it leaves the slide? a) b) c) d) e)
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Question A ball, which is rolling along a table with a speed of 4 m/s, rolls off of the end of the table and falls to the floor. How far horizontally does the ball travel between leaving the edge of the table and striking the floor? a) 0.45 m b) 1.8 m c) 2.5 m d) 39 m e) None of the above 4 m/s 1.0 m
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Answer A ball rolls along a table, 1.0 m above the floor, with a speed of 4 m/s. It rolls off of the end of the table and falls to the floor. How far horizontally does the ball travel between leaving the end of the table and striking the floor? Vertical Motion 4 m/s 1.0 m 0 0 / y v m s = y v Don't Care = 0 1.0 y m = 0 y m = 2 9.81 / y a m s = - ? t = x y
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Answer A ball rolls along a table, 1.0 m above the floor, with a speed of 4 m/s. It rolls off of the end of the table and falls to the floor. How far horizontally does the ball travel between leaving the end of the table and striking the floor? Vertical Motion 0 0 / y v m s = y v Don't Care = 0 1.0 y m = 0 y m = 2 9.81 / y a m s = - ? t = t a v v y y y + = 0 t v v y y y y ) ( 0 2 1 0 + + = 2 2 1 0 0 t a t v y y y y + + = ) ( 2 0 2 0 2 y y a v v y y y - + =
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Answer A ball rolls along a table, 1.0 m above the floor, with a speed of 4 m/s. It rolls off of the end of the table and falls to the floor. How far horizontally does the ball travel between leaving the end of the table and striking the floor? Vertical Motion
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This note was uploaded on 09/04/2008 for the course PHYS 201 taught by Professor Durig during the Spring '08 term at VCU.

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Chapter 5 Lecture - General Physics I Durig Lewis Survey...

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