Exhibit 4-2

Newton approximated motion in a circle as a series of linear motions, as in the polygon below.







Assume that the particle moves at constant speed vA from A to B, and at constant speed vB from B to C.



Use this exhibit to answer the following question(s).



Refer to Exhibit 4-2. The direction of the change in velocity, , at point B, is shown by the arrow in



a.

c

Physics & Space Science

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