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Unformatted text preview: Solution to On-Line Homework Problem 2.2(Running equal distances. ..not necessarily displacements!) Problem: As my younger daughter practices running hurdles around the oval track at the nearby high school, you observe her to cover equal distances each second. You now conclude: Select One of the Following: (a-Answer) That she has a constant speed. (b) That she has a constant velocity. (c) Neither A nor B. (d) Both A and B. (e) That she is now at rest. Solution If she is covering equal distances each second, then she has a constant speed. Since the problem does not clearly state the direction of motion, you cannot conclude that she has a constant velocity, which is only if you are going in a straight line. In fact, the problem implies going equal distances per time while going around a curve, so she would not have a constant velocity. All you can conclude is answer A. Total Points for Problem: 2 Points 2...
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