Answer Problems 1 through 3 by choosing one of the eight labeled acceleration vectors or selecting option I:

1. At this instant, the particle has steady speed and is curving to the right. What is the direction of its acceleration?

Figure Ex 4.3

2. At this instant, the particle is speeding up and curving upward. What is the direction of its acceleration?

Figure Ex 4.4

3. At this instant, the particle is speeding up and curving downward. What is the direction of its acceleration?

Figure Ex 4.5