Learn how to apply the momentum principle to find the net force on a turning car! This physics tutorial breaks down the calculations and concepts step by step, helping you understand forces, momentum, ...

The first semester of an undergraduate physics course invariably spends a lot of time on two big ideas: The momentum principle and the work energy principle. Both deal with forces acting on an object, ...

Learn how to calculate the force required to push a cart at constant velocity. This video explains the physics behind balanced forces, friction, and Newton’s First Law, showing why constant speed ...

Tugging a small toy with your dog can be a lot of fun—but it’s also a great way to experiment with forces acting on an object. Forces are what scientists call the pushing and pulling on objects. In ...