- #1
Ahsan Khan
- 270
- 5
Hello all,
These days I am studying rotation and rolling of bodies. We know a body can be made to rotate about any point. Let's assume that an external force is acting on the rotating body fixed about the point of rotation, and this force made the body rotates faster that is its torque produces an angular acceleration in the body. And the calculation of angular acceleration(about the point of rotation) is easy to calculate using torque equation which says torque(in magnitude) equals magnitude of moment of inertia(about point of rotation) times angular acceleration of body about point of rotation (in magnitude).
I wonder if the torque equation work if I choose to quantify torque about some (new) point other than the point about which the body is actually rotating and plug it in, to find the angular acceleration about that new point? I mean do torque equation remains same about any general point or in Physics do we always need to use torque equation only about the point about which the body is actually rotating?
Regards
Thanks a bunch :)
These days I am studying rotation and rolling of bodies. We know a body can be made to rotate about any point. Let's assume that an external force is acting on the rotating body fixed about the point of rotation, and this force made the body rotates faster that is its torque produces an angular acceleration in the body. And the calculation of angular acceleration(about the point of rotation) is easy to calculate using torque equation which says torque(in magnitude) equals magnitude of moment of inertia(about point of rotation) times angular acceleration of body about point of rotation (in magnitude).
I wonder if the torque equation work if I choose to quantify torque about some (new) point other than the point about which the body is actually rotating and plug it in, to find the angular acceleration about that new point? I mean do torque equation remains same about any general point or in Physics do we always need to use torque equation only about the point about which the body is actually rotating?
Regards
Thanks a bunch :)