Tag
Torque
Entries tagged torque.
5 entries
Angular momentum
Angular momentum is rotational inertia times angular velocity, and it stays constant whenever no outside torque acts, which is why spin speeds up as mass pulls inward.
7 min
ConceptCenter of mass and balance
The center of mass is the single point where a distributed body's mass can be treated as concentrated for the purpose of predicting how the whole body moves and whether it stays balanced.
7 min
ConceptCross product as oriented area and rotation
The cross product of two vectors is a third vector, perpendicular to both, whose length equals the area of the parallelogram they span and whose direction, fixed by a right hand convention, records the sense of rotation from the first vector to the second.
7 min
ConceptGears, belts, chains, and transmissions
A gear, belt, or chain transmission trades rotational speed for torque, or torque for speed, in an exact ratio set by the size of the wheels it connects.
7 min
ConceptTorque and rotational effect
Torque is the turning effect of a force, set by how much force you apply, how far from the pivot, and at what angle.
7 min