Torque, Basic Introduction, Lever Arm, Moment of Force, Simple Machines & Mechanical Advantage
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- Опубліковано 26 жов 2017
- This physics video tutorial provides a basic introduction into torque which is also known as moment of force. Torque is the product of force and lever arm also known as moment arm. The lever arm is the perpendicular distance between the axis of rotation and the line of action of the force. Torque is the rotational equivalent of force. Positive torque values produce counterclockwise rotation and negative torques produce clockwise rotation. This video contains plenty of examples and practice problems of torques as it relates to doors, seesaws, and shovels. It discusses how to calculate the mechanical advantage of simple machines like seesaws and shovels.
Intro to Rotational Motion:
• Rotational Motion Phys...
Angular Velocity:
• Angular Velocity Physi...
Angular Acceleration:
• Angular Acceleration P...
Rotational Kinematics:
• Rotational Kinematics ...
Intro to Inertia:
• Inertia - Basic Introd...
________________________________
Parallel Axis Theorem:
• Parallel Axis Theorem ...
Rotational Dynamics:
• Rotational Dynamics - ...
Rotational Kinetic Energy:
• Rotational Kinetic Ene...
Rotational Power, Work, & Energy:
• Rotational Power, Work...
Work Done By a Constant Torque:
• Work Done By a Constan...
Angular Momentum & Torque:
• Angular Momentum - Bas...
_________________________________
What Is Angular Momentum?
• What Is Angular Momentum?
Angular Momentum Problems:
• Angular Momentum Physi...
Angular Impulse:
• Angular Impulse
Rotational Motion - Review:
• Torque, Moment of Iner...
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Could I somehow do the closed captions for this video for you?
I'm not huge into making YT videos so I don't know how it works, but this video could really use formal captions. :)
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An hour of video beats out 10 hours of class. Thank you for the work, completely understandable.
Edward Stec I’m sorry but it takes 10 hours to teach torque? 👀
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@@leonashley9330 "hour"
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00:01 Torque is the force times the moment arm
02:55 Torque is the product of force and moment arm
05:38 Calculating net torque on an object
08:20 Understanding torque and net torque in rotational equilibrium
11:07 Net torque of the system is positive, causing counterclockwise rotation.
13:54 Understanding torque and mechanical advantage
16:20 Understanding Leverage and Mechanical Advantage
18:59 Using a shovel at the edge increases mechanical advantage
Crafted by Merlin AI.
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4:41 the same thing applies to an electric field dipole F=qE
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Wow, in our lesson, our prof just used r for the moment arm then multiply it by sine theta. This vid makes it so much easier by making the moment arm (r) equal to the length from the axis of rotation multiplied by sine theta.
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Shouldn't the answer to the problem at 12:54 be 1965.8 Nm? F3= (500cos(50))(5m) because we need the adjacent component to the angle theta. If I'm wrong can someone explain why we can use sin?
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4:01 The angle between two vectors is the one when the two vectors are meeting tail to tail and its direction is counterclockwise; in such scenario the angle has to be (180-theta) which in fact is equal to sin theta.
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