This video explains the role of normal force in forces of constraint, shedding light on how it affects the motion of objects ...

Here is what I like to do (for fun). Take a classic physics problem and go over the solution. After that, I take it just one step further to see what happens. Today, let's start with this problem (you ...

Learn how to calculate the universal gravitational force between two objects! This video explains Newton’s Law of Gravitation, walking you through the formula, units, and a step-by-step example to ...