| Term | Definition |
|
translational equilibrium |
An object is said to be in this state when the sum of the forces acting on it is equal to zero. |
|
static equilibrium |
When an object is at rest, it is said to be in this state. |
|
dynamic equilibrium |
When an object moves with a constant velocity, it is said to be in this state |
|
tension |
The force from a tight string, rope, or chain. This force is directed away from the object to which the string, rope, or chain is anchored. |
|
translational motion |
Motion from one point to another which does not involve repeatedly passing the same point in space |
|
rotational motion |
Motion around a central axis such that an object could repeatedly pass the same point in space relative to that axis |
|
axis of rotation |
The point (or line) in space that is the center of rotational motion |
|
lever arm |
the length of an imaginary line drawn from the axis of rotation to the point at which the force is being applied |
|
torque |
The tendency of a force to cause rotational acceleration |
|
rotational equilibrium |
The state in which the sum of the torques acting on an object is zero |