Question

what pieces of information are necessary to describe an objects motion?
position and speed
position, direction, and speed
position and direction
direction and speed

Explanation:

To fully describe an object's motion, we need to know where it is (position), which way it is moving (direction), and how fast it is moving (speed). Position gives the location, direction indicates the path, and speed shows the rate of motion.

Answer:

position, direction, and speed