Take a group of runners circling a track at unique, constant paces. Answering the question of how many will always end up running alone, no matter their speed, has vexed mathematicians for decades.

The terms projectile and trajectory are introduced. Projectile Motion: The terms projectile and trajectory are introduced. Students learn to describe horizontal and vertical components of a projectile ...

I’ve started recreating many of my numerical model tutorials for introductory physics. In the beginning, I had students use spreadsheets to create models. Of course, spreadsheets aren’t very good for ...

Newton’s 3rd Law is introduced in this lesson and applied to everyday situations. Newton’s Third Law: Newton’s 3rd Law is introduced in this lesson, and the law is applied to everyday situations.

As the name suggests, horizontal motion occurs when the object is thrown horizontally, meaning it starts with zero vertical velocity. The only force acting on the object is gravity, causing it to ...

Introduction Have you ever seen a long, game-winning pass in a football game, a baseball player throw in a ball from way out in the outfield or a soccer goalie punt a ball all the way down the field?