Question

The moment of inertia in angular kinematics or kinetics corresponds to mass in linear kinematics or kinetics.
a. True
b. False

Answer 1

Answer:

True

Explanation:

Rotational and linear motions are analogous to each other.

The inertia of a body in a linear motion is its mass. This can be seen from Newton's second law of thermodynamics:

F = ma

The larger the value of the force, the larger the inertia is (m) and the slower it accelerates.

The inertia of a body in a rotational body is it moment of inertia (I). Both I and m are same but I depends on both the shape and mass of the rotating body.

For example, The inertia of a solid disk with mass M and radius R is:

$I=\frac {1}{2}\times MR^2$

Hence, the statement is true.