### Which direction best approximates the direction of acceleration when the object is at position 1?

ANSWER: downward to the rightAt this point, the object’s velocity vector is not changing direction; rather, it is increasing in magnitude. Therefore, the object’s acceleration is nearly parallel to its velocity.

### Which direction best approximates the direction of acceleration when the object is at position 2?

ANSWER: straight upAt this point, the speed has a local maximum; thus the magnitude of is not changing. Therefore, no component of the acceleration vector is parallel to the velocity vector. However, since the direction of is changing there is an acceleration.

### Which direction best approximates the direction of acceleration when the object is at position 3?

ANSWER: straight downAt this point, the speed has a local minimum; thus the magnitude of is not changing. Therefore, no component of the acceleration vector is parallel to the velocity vector. However, since the direction of is changing there is an acceleration.