ws01 - Worksheet 1 Position velocity and acceleration...

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Worksheet 1: Position, velocity, and acceleration Questions 1. See the graph on page 3. From 0 to A: The needle would be at a constant non-zero value. From A to B: The needle would move from the previous value to a faster value. From B to C: The needle would remain constant at the new faster value. 2. See graphs A-F on page 4. (a) To return to x 0 , the graph must have zero net area. These graphs are: B and F. (b) To move in the negative x direction, the velocity must be negative at some point. These are graphs: B, C, and F. (c) To speed up the entire time, the graph must have the same sign for the velocity and its slope (the acceleration) the entire time. This is graph A. (d) To slow down, the graph must have opposite signs for velocity and acceleration. This is true for the first half of graph F. (e) None of the graphs move in the negative x direction (have negative velocity), change direction and move in the positive x direction (have positive velocity). (f) The student with the greatest distance covered corresponds to the graph with the greatest area beneath it (positive or negative). This is graph C.
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