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Flipping Physics
(Energy Solution) Acceleration of a Wheel descending on a Rope
A rope is wrapped around a bicycle wheel with a rotational inertia of 0.68MR^2. The wheel is released from rest and allowed to descend without slipping as the rope unwinds from the wheel. In terms of g, determine the acceleration of the...
Flipping Physics
Dart with Thin Rod Collision - Conservation of Angular Momentum Demonstration and Problem
A 5.3 g dart is moving vertically at 16.5 m/s just before it collides with and sticks to a 33.9 cm long, thin piece of cardboard. If the dart hits the 71.8 g piece of cardboard 28.7 cm from its fixed end, to what maximum angle does the...
Flipping Physics
Introductory Rotational Form of Newton's Second Law Problem
A basic rotational form of Newton’s Second Law problem with only one force.
Flipping Physics
(1 of 2) Measuring the Rotational Inertia of a Bike Wheel
That’s right, we actually measure the rotational inertia of a bicycle wheel. How cool is that?
Flipping Physics
Angular Momentum of a Rigid Object with Shape Introduction
The equation for #AngularMomentum of #RigidObjects with shape is introduced and a simple example of angular momentum is solved for.
Flipping Physics
(Torque Solution) Acceleration of a Wheel descending on a Rope
A rope is wrapped around a bicycle wheel with a rotational inertia of 0.68MR^2. The wheel is released from rest and allowed to descend without slipping as the rope unwinds from the wheel. In terms of g, determine the acceleration of the...
Flipping Physics
Uniform Solid Cylinder Moment of Inertia Derivation
Deriving the integral equation for the moment of inertia or rotational inertia of a uniform solid cylinder.
Flipping Physics
Physical Pendulum - Period Derivation and Demonstration using Calculus
Calculus is used to derive the angular frequency and period equations for a physical pendulum. A physical pendulum is also demonstrated and real world calculations are performed. This is an AP Physics C: Mechanics...
Flipping Physics
Using Integrals to Derive Rotational Inertia of a Long, Thin Rod with Demonstration
We use integrals to derive the #rotationalinertia of a uniform, long, thin rod. And we demonstrate our answer is correct using a Rotational Inertia Demonstrator.
Flipping Physics
2 Masses on a Pulley - Conservation of Energy Demonstration
Mass 1 and mass 2 hang from either side of a frictionless #pulley with #rotationalInertia, I, and radius, R. What is the angular acceleration of the pulley? Use #ConservationOfEnergy
Flipping Physics
(2 of 2) Measuring the Rotational Inertia of a Bike Wheel
1) Calculating if our answer makes sense. 2) Why can’t we sum the torques on everything? 3) Finding the force of tension.
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
Moments of Inertia of Rigid Objects with Shape
The moment of inertia of a system of particles equation is used to estimate six different moments of inertia of rigid objects with constant density.
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
Angular Momentum and a Pulley Mass System
Angular momentum is used to determine the acceleration of a pulley mass system. two alternate solutions are shown, and the acceleration is demonstrated. This is an AP Physics C: Mechanics topic.
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Flipping Physics
Point Particle with Rigid Object Collision - Conservation of Angular Momentum Demonstration and Problem
A 5.3 g dart moving horizontally at 16.9 m/s collides with and sticks to a stationary Rotational Inertia Demonstrator a distance of 31.7 cm from the axis of rotation of the RID. What is the final angular velocity of the RID?
Flipping Physics
Conservation of Angular Momentum Introduction and Demonstrations
Several demonstrations of #AngularMomentumConservation are shown using a rotating stool. The equations is also derived using Newton’s Second Law. Conservation of the direction of angular momentum is also demonstrated.
Flipping Physics
Introductory Moment of Inertia and Rotational Kinetic Energy Problem
Three 20.0-gram masses are 9.4 cm from an axis of rotation and rotating at 152 revolutions per minute. What is the moment of inertia of the three-object system? The strings holding the masses are of negligible mass. Rotational Kinetic...
Flipping Physics
Uniform Thin Hoop Rotational Inertia Derivation
Deriving the integral equation for the moment of inertia of a rigid body. Also deriving the rotational inertia of a uniform thin hoop. Want Lecture Notes?f='http://www.flippingphysics.com/rotati...
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Flipping Physics
Moment of Inertia Introduction and Rotational Kinetic Energy Derivation
The concept of kinetic energy applied to a stationary, rotating wheel is used to define Moment of Inertia and derive Rotational Kinetic Energy. Moment of Inertia is demonstrated.
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
Angular Momentum of a Rigid Body Derivation
Angular momentum of a rigid body is demonstrated and derived. This is an AP Physics C: Mechanics topic.
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Content Ti<br/>mes:
0:00<br/> The Demonstration
1:20 The Derivation
4:15 Newton’s Second Law
Content Ti<br/>mes:
0:00<br/> The Demonstration
1:20 The Derivation
4:15 Newton’s Second Law
Flipping Physics
How the Force of Tension on a Pulley Changes with Acceleration
We predict and measure the force of tension acting on a pulley while the system is at rest and accelerating.