Exhibit 4-2 Newton Approximated Motion in a Circle as a Series of Series

question 62

Multiple Choice

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 v_A from A to B,and at constant speed v_B from B to C.
Use this exhibit to answer the following question(s) .
-Refer to Exhibit 4-2.The direction of the acceleration,
,at point B,is shown by the arrow in

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