Balanced Torques

Question	Answer
Newton'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.
Torque Equation	T = r * F -Torques unit is N*m
Force	Forces perpendicular to the radius cause torque.
Static Torque	Static torque does not produce any angular acceleration.
Lever Arm	Torque provided by a force is given by T = F * d, where "d" refers to the "lever arm".
Balanced Torque	If 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.
Net Torque	Because 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
Newton'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.
Newton'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.

Resource summary

	Created by Shelby Wolfe over 5 years ago