Torque... What is torque? Well, if you've been wondering, here's an idea of what torque is.
We have learned that a force, in terms of Physics, is simply a push or a pull, and objects begin to move, accelerate, and/or decelerate when subjected to a force.
But is it enough, only to be able to describe physically and mathematically, simple ans straightforward forwards and backwards motion? Of course no.
This is where torque comes in. You can call torque a 'rotational force', since objects begin to rotate, undergo angular acceleration, and/or deceleration when subjected to torque. Torque is to rotational motion what force is to translational motion(motion without rotation). When we study torque, we are studying the dynamics of rotational motion; studying what causes rotational motion to happen in the first place.
To make an object start rotating about and axis clearly requires a force, but the direction of this force, and where it is applied, are also important. For example, an ordinary situation where you open the door. The more force you apply, the quicker the door will open. But if you apply the same magnitude of force at a point closer to the hinge, the door won't open so quickly; the effect of the force is less
Where the force acts, as well as its magnitude and direction, affects how quickly the door opens.
Thus, with this in mind, torque can be described by a simple formula; torque=rF sinx, where r is the lever arm, or the radial line from the axis to where the force acts, F is the applied force, and x is the angle between the object and the acting force.
More? Okay then...
http://en.wikipedia.org/wiki/Torque
http://www.youtube.com/watch?v=o0Jem7OCfP0
We have learned that a force, in terms of Physics, is simply a push or a pull, and objects begin to move, accelerate, and/or decelerate when subjected to a force.
But is it enough, only to be able to describe physically and mathematically, simple ans straightforward forwards and backwards motion? Of course no.
This is where torque comes in. You can call torque a 'rotational force', since objects begin to rotate, undergo angular acceleration, and/or deceleration when subjected to torque. Torque is to rotational motion what force is to translational motion(motion without rotation). When we study torque, we are studying the dynamics of rotational motion; studying what causes rotational motion to happen in the first place.
To make an object start rotating about and axis clearly requires a force, but the direction of this force, and where it is applied, are also important. For example, an ordinary situation where you open the door. The more force you apply, the quicker the door will open. But if you apply the same magnitude of force at a point closer to the hinge, the door won't open so quickly; the effect of the force is less
Where the force acts, as well as its magnitude and direction, affects how quickly the door opens.
Thus, with this in mind, torque can be described by a simple formula; torque=rF sinx, where r is the lever arm, or the radial line from the axis to where the force acts, F is the applied force, and x is the angle between the object and the acting force.
More? Okay then...
http://en.wikipedia.org/wiki/Torque
http://www.youtube.com/watch?v=o0Jem7OCfP0
Bravo! That's my son.
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