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

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 change in velocity, , at point B, is shown by the arrow in

A)

B)

C)

D)

E)