Flipping Physics
Work as the Dot Product
Work as the dot product is defined. The dot product using unit vectors is reviewed. Several examples are worked through. Want Lecture Notes? http://www.flippingphysics.com/work-d... This is an AP Physics C: Mechanics topic.
Flipping Physics
Do You Feel Your Weight?
No. You do not feel your weight. You feel the force normal acting on you. This video shows why and demonstrates what you feel on an elevator.
Flipping Physics
Introductory Rotational Equilibrium Problem
A uniform 0.093 kg meterstick is supported at the 15 cm and 92 cm marks. When a 0.250 kg object is placed at the 6.0 cm mark, what are the magnitudes of the forces supporting the meterstick?
Flipping Physics
Placing the Fulcrum on a Seesaw
A 200.0 g mass is placed at the 20.0 cm mark on a uniform 93 g meterstick. A 100.0 g mass is placed at the 90.0 cm mark. Where on the meterstick should the fulcrum be placed to balance the system?
Flipping Physics
Example of Energy Transferred Into and Out of a System
Example: A 7.50 kg block on a level surface is acted upon by a force applied of 35.0 N at an angle of 25.0° below +x axis. The block starts at rest, the coefficient of kinetic friction between the block and surface is 0.245, and the...
Flipping Physics
Graphing the Rotational Inertia of an Irregular Shape
We determine what data to collect to create a graph with rotational inertia as the slope of the best-fit line. Then we collect the data and determine the rotational inertia of an irregular shape.
Flipping Physics
Torque - Mass on Plank with String
A 0.300 kg mass rests on a 0.395 m long, 0.764 kg, uniform wooden plank supported by a string as shown in the figure. If the mass is 0.274 m from the wall and the angle between the string and the plank is 32.1°, (a) What is the force of...
Flipping Physics
Using Newton's Second Law to find the Force of Friction
In order to use Newton’s Second Law, you need to correctly draw the Free Body Diagram. This problem explains a common mistake students make involving the force applied. We also review how to find acceleration on a velocity as a function...
Flipping Physics
Net Work equals Change in Kinetic Energy Problem by Billy
Learn with Billy as he uses the Work-Energy Theorem or what I prefer to call the Net Work-Kinetic Energy Theorem to solve a problem.
Flipping Physics
Introduction to Newton's 2nd Law with Example Problem
The application of Newton’s Second Law is when you really understand what the net force equals mass times acceleration where both force and acceleration are vectors really means. Therefore, we introduce Newton’s Second Law and then do an...
Flipping Physics
Letting Go Of Your Numbers Dependency
I teach physics. Trust me when I say that you need to learn to let go of your numbers dependency. In this video, I show why.
Flipping Physics
Understanding the Force of Friction Equation
The Force of Friction Equation is actually three equations is one.
Flipping Physics
5 Steps to Solve any Free Body Diagram Problem
Learn how to solve problems that have Free Body Diagrams!
Flipping Physics
Introduction to Free Body Diagrams or Force Diagrams
We define and discuss how to draw Free Body Diagrams which are also called Force Diagrams. In addition we define the force normal and the force applied. Force of friction and center of mass are briefly discussed, however, a much more...
Flipping Physics
2 Masses on a Pulley - Torque Demonstration
0.100 kg and 0.200 kg masses hang from either side of a frictionless #Pulley with a rotational inertia of 0.0137 kg·m^2 and radius of 0.0385 m. (a) What is the #AngularAcceleration of the pulley? (b) What is the #TensionForce in each...
Flipping Physics
An Introductory Tension Force Problem
Learn how to solve a basic tension force problem with demonstration!
Flipping Physics
Conservative and Nonconservative Forces
Conservative and Nonconservative forces are defined and many demonstrations are analyzed to determine which forces are conservative and which are nonconservative. Want Lecture Notes? http://www.flippingphysics.com/force-... This is an...
Flipping Physics
Breaking the Force of Gravity into its Components on an Incline
Resolve the force of gravity into its parallel and perpendicular components so you can sum the forces.
Flipping Physics
Proving and Explaining Impulse Approximation
Know when and how to use the “Impulse Approximation”.
Flipping Physics
The Reality of our first Free Body Diagram
The free body diagram we first learn is not entirely accurate. All of the forces are not drawn from the center of mass of the object. Learn why we start this way and, when we get torque, what the free body diagrams will actually look like.
Flipping Physics
Introduction to the Coefficient of Friction
Please do not confuse the Coefficient of Friction with the Force of Friction. This video will help you not fall into that Pit of Despair!
Flipping Physics
Centripetal Force Introduction and Demonstration
Learn why a centripetal force exists, three important things to remember about centripetal force, and drawing free body diagrams for objects moving in circles.