Yvette and Zack are driving side by side down the freeway with their windows down. Zack wants to toss his physics book out of his car window so that it lands in Yvette’s front seat. Ignoring air resistance, should Zack aim his throw:
Outward and toward the front of Yvette's car,
Straight outward,
Or outward and toward the back of Yvette's car?