Accelerate NEET 2020: Rotational Motion Class 3 (10.09.2019)

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Question 1

Four identical thin rods each of mass M and length form a square frame. Moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is

• A
• B
• C
• D

Question 2

Three particles, each of mass m grams situated at the vertices of an equilateral triangle ABC of side l cm (as shown in the figure). The moment

_{of inertia of the system about a line AX perpendicular to AB and in the plane of ABC, in gram-cm}² units will be.

• A
• B
• C
• D

Question 3

Find the moment of inertia of the rectangular plate with sides 4 m and 2 m respectively about an axis passing through one of the shorter sides.

• A19m/6 kg-m²
• B29m/6 kg-m²
• C17m/3 kg-m²
• D17m/6 kg-m²

Question 4

The moment of inertia for a rectangular slab about an axis passing through its middle point and perpendicular to its plane is

• A
• B
• C
• D

Question 5

Figure shows a thin metallic triangular sheet ABC. The mass of the sheet is M. The moment of inertia of the sheet about side
AC is

• AMl²/18
• BMl²/12
• CMl²/6
• DMl²/4

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