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Alice (A), Bob (B), and Carrie (C) all start from their dorm and head for the library for an evening study session. Alice takes a straight path, while the paths Bob and Carrie follow are portions of circular arcs, as shown in Fig. 3.28. Each student walks at a constant speed. All three leave the dorm at the same time, and they arrive simultaneously at the library.
Which statement characterizes their accelerations while walking (not starting and stopping)?
- a. They’re equal.
- b. None accelerates.
- c. A > B > C
- d. C > B > A
- e. B > C > A
- f. There’s not enough information to decide.
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Essential University Physics (3rd Edition)
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