Flashcards

Balanced Torques

Shelby Wolfe English 9 cards

Cards in this deck (9)

1Newton's 3rd Law-For every action, there is an equal and opposite reaction.
-Newton's 3rd law for rotational motion: For every applied torque, there is an equal and opposite reaction torque.
2Torque EquationT = r * F
-Torques unit is N*m
3ForceForces perpendicular to the radius cause torque.
4Static TorqueStatic torque does not produce any angular acceleration.
5Lever ArmTorque provided by a force is given by
T = F * d, where "d" refers to the
"lever arm".
6Balanced TorqueIf the size and direction of the torques acting on an object are exactly balanced, then there is no net torque acting on the object and the object is said to be in equilibrium.
7Net TorqueBecause an object with balanced torques does not move, the object does not experience angular acceleration. Even though it has inertia, the 0 in place of angular acceleration gives the total of zero net torque. ∑T = I * α
8Newton's 1st Law-Inertia: the resistance an object has to a change in its state of motion.
-An object at rest stays at rest unless acted upon by an unbalanced force.
-Objects that experience balanced torques still experience inertia due staying at rest.
9Newton's 2nd Law-Newton's 2nd law for rotational motion: the angular acceleration is proportional to the net torque and inversely proportional to the moment of inertia.
-Since there is no angular acceleration, there is no net torque.