Virtually Passed
proof forces parallel to members in simple truss
Ever wondered why we neglect shear forces and bending moments in simple truss's? Here is a formal proof to show why we only consider axial forces (forces parallel to the members of the truss). It can only be done under three assumptions....
Flipping Physics
AP Physics 1: Rotational Dynamics Review
Review of the Rotational Dynamics topics covered in the AP Physics 1 curriculum.
Virtually Passed
Adding Forces Example 1
Forces are vectors and can be summed together by adding their x, y and z components together. This can be done graphically or analytically. This problems solves this analytically.
Catalyst University
Biomechanics | Elbow/Biceps Torque Problem #2
Here, I work a basic torque problem at the elbow joint in biomechanics. The following considerations are used. [1] elbow at 90 degrees [2] weight of dumbbell in hand [3] forearm weight is considered
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 topic. Content Times:...
Catalyst University
The Gait Cycle [Part 2] | Terminal Stance (TSt) → Pre-swing (PSw)
In this video, we explore the details occurring at each joint during the gait cycle. This is part 2, covering Terminal Stance (TSt) → Pre-swing (PSw)
Catalyst University
Biomechanics | Elbow/Biceps Torque Problem #1
Here, I work a basic torque problem at the elbow joint in biomechanics. The following considerations are used. [1] elbow at 90 degrees [2] weight of dumbbell in hand is considered [3] forearm weight NEGLECTED
Catalyst University
Exercise Physiology | HMB (β-Hydroxy-β-Methylbutyrate): What does it do?
Exercise Physiology | HMB (β-Hydroxy-β-Methylbutyrate): What does it do?
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?
Catalyst University
My Baylor DPT Class | Predicting Induced Torques from Joint ROMs
In this video, I explain how to predict the vast majority of induced torques given ROM for joints in the gait cycle.
Virtually Passed
Moments Example 1
To find the moment of a force about a point simply multiply the force by the perpendicular distance from the force vector to the point.
Curated Video
What is a servo motor?
What is a servo motor and what does a servo motor do, why do we use servo motors.
Flipping Physics
Angular Momentum of Particles Introduction
The equation for the #AngularMomentum of a #PointParticle is built and visualized. Proof a point particle can have angular momentum is shown. The right-hand rule for angular momentum direction is shown.
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...
Curated Video
Servo motor, what's inside
In this video, we'll take a look inside a servo motor to see what's inside. This video is a great way to learn about servo motors and what they do! If you're interested in motors or electronics, this video is a great way to learn about...
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. Content Times: 0:00 The Problem 1:50 The...
Virtually Passed
Equivalent Force Couple System example
To find the Equivalent force couple system first find the net force in all 3 directions (x,y and z). Then find the net moment at the point of interest about all 3 axis (x, y and z). Notice to determine what direction is positive about...
Curated Video
Open Differential Explained
Learn how an open differential works, the main parts and why we use them in this video on open differential explained
Curated Video
Why differential gears are used
Learn how a differential gear works, open differential, limited slip differential, locked differential
Flipping Physics
Cross Product Torque (with a Cross Product Review)
Torque as the cross product is introduced. How to actually perform the cross product using matrices is reviewed and 4.5 examples are walked through. This is an AP Physics C: Mechanics topic. Content Times: 0:00 Torque Review 0:55 Cross...
Virtually Passed
Moments Example 2
To find the moment of a force about a point simply multiply the force by the perpendicular distance to the point. To make things easier, you can break the force into horizontal and vertical components and sum each of their moment...
Science360
Torque - Science of NFL Football
"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. In this segment, NBC's Lester Holt describes what torque is and how the...