hwk6s_all_but_graphs

# hwk6s_all_but_graphs - A M Kolchin SAR Physics Homework...

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A M Kolchin SAR Physics Homework 6 (SOLUTIONS) (3 pages) Organize your work in this way; label graphs clearly. Part I 1. a = Δ v Δ t = 10 m/s 5 s = 2 ( m/s ) /s. 2. Acceleration vs. Time (a) I graphed a vs. t up to t = 5 s . (Note: a is constant) (b) I shaded in the area up until t = 3 s . (c) This area equals the increase in speed of the bicycle during the ﬁrst 3 seconds. (d) Area ( m/s ) = height ( m/s 2 ) × base ( s ) = 2 m/s 2 × 3 s = 6 m/s (e) i. Area ( t ) = height × base (Area is a function of time. I’m not too fussy on this one) ii. v ( t ) = at 1

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3. Speed vs. Time (a) Table of time ( t ) and speed v ( t ): t ( s ) v ( t ) ( m/s ) 0 0 1 2 2 4 3 6 4 8 5 10 (b) I graphed v ( t ) vs. t for the table of ordered pairs above. (c) I shaded in the area up to t = 3 s . (d) This area equals the change in position, or distance covered by the bicycle during the ﬁrst 3 seconds. Because we chose x = 0 at t = 0 (see the front sheet again where reference point is mentioned), this area is also equal to
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hwk6s_all_but_graphs - A M Kolchin SAR Physics Homework...

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