Question

moment of inertia of a uniform triangular lamina of uniform mass density will be​

Answer 1

Answer:

moment of inertia of this triangular lamina is maximum about the rotational axis which is at right side

Explanation:

Moment of inertia of the system of rigid body is given as

So we have

$I = \int dm r^2$

here we have

dm = mass of small element

r = distance of the small element from axis of rotation

Now we can say that if the axis of rotation is away from the mass concentration of the rigid body then the moment of inertia will be maximum

So here moment of inertia of this triangular lamina is maximum about the rotational axis which is at right side

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Topic : Moment of inertia

https://brainly.in/question/1217768

Answer 2

The moment of inertia (I) of a body is a measure of its ability to resist change in its rotational state of motion. Consider a triangular lamina of base (b), altitude (h) and mass (M). Moment of Inertia of the strip DE about the axis of rotation BC is given by: dIBC = (Mass of strip DE) (Distance from axis)²