SATHEE: Rotational Motion Question 210

Rotational Motion Question 210

Question: There is a flat uniform triangular A plate ABC such that $A B = 4 c m, B C = 3 c m$ and angle $a b c = 90^{\circ}$ . The moment of inertia of the plate about AB, BC and CA as axis is respectively $I_{1,} I_{2}$ and $I_{3}$ . Which one of the following is true?

Options:

A) $I_{3} > I_{2}$

B) $I_{2} > I_{1}$

C) $I_{3} > I_{1}$

D) $I_{1} > I_{2}$

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Moment of Inertia depend upon mass and distribution of masses as I $= Σ m r^{2} .$

$ Further, as the distance of masses is more, more is the moment of Inertia.

If we choose BC as axis.

Distance is maximum.

Hence, Moment of Inertia is maximum.

$∴, I_{2} > I_{1}, I_{2} > I_{3}$

Rotational Motion Question 210

Question: There is a flat uniform triangular A plate ABC such that $A B = 4 c m, B C = 3 c m$ and angle $a b c = 90^{\circ}$ . The moment of inertia of the plate about AB, BC and CA as axis is respectively $I_{1,} I_{2}$ and $I_{3}$ . Which one of the following is true?

Options:

Answer:

Solution:

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Rotational Motion Question 210

Question: There is a flat uniform triangular A plate ABC such that AB=4cm,BC=3cm and angleabc=90∘ . The moment of inertia of the plate about AB, BC and CA as axis is respectively I1,I2 andI3 . Which one of the following is true?

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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Question: There is a flat uniform triangular A plate ABC such that $A B = 4 c m, B C = 3 c m$ and angle $a b c = 90^{\circ}$ . The moment of inertia of the plate about AB, BC and CA as axis is respectively $I_{1,} I_{2}$ and $I_{3}$ . Which one of the following is true?