define momentum of inertia and torque
Answers
Answer:
The moment of inertia, otherwise known as the angular mass or rotational inertia, of a rigid body is a quantity that determines the torque needed for a desired angular acceleration about a rotational axis; similar to how mass determines the force needed for a desired acceleration. Wikipedia
SI unit: kg m2
Other units: lbf·ft·s2
Dimension: M L2
☛Moment of inertia, in physics, quantitative measure of the rotational inertia of a body—i.e., the opposition that the body exhibits to having its speed of rotation about an axis altered by the application of a torque (turning force).
☛The torque on a given axis is the product of the moment of inertia and the angular acceleration. The units of torque are Newton-meters (N∙m). Torque Formula Questions: 1) The moment of inertia of a solid disc is , where M is the mass of the disc, and R is the radius.