Aperson runs 5 km north and then turns west and travels for 7 km then turn south for 2 km it takes a person 4 hours to make the journey what is the persons distance, speed, displacement and velocity
answer; /////a bolt is not a compound
it's d) they study different areas of science and have different scientific focuses.
the first one is d hunted with stone-tipped spears
the second one is a