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 ...

Learn how to analyze the forces between three electric charges using fundamental electrostatics principles. This video explains force interactions, directions, and net force in a clear, step-by-step ...

You're sitting in physics class, working on a traditional problem involving forces and acceleration, when you start to wonder where these terms even came from. Were they just dreamed up to bring ...

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 ...

It's impossible to talk about football these days without talking about the problem of big hits. The giant dramatic collisions between players moving at high speed are at once one of the great ...