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A Piece of Thin Wire of Mass M and Length

Question 39

Multiple Choice

A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices.


A) A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices. A) ma<sup>2 </sup> B) ma<sup>2 </sup> C) ma<sup>2 </sup> D) ma<sup>2 </sup> E) ma<sup>2 </sup> ma2

B) A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices. A) ma<sup>2 </sup> B) ma<sup>2 </sup> C) ma<sup>2 </sup> D) ma<sup>2 </sup> E) ma<sup>2 </sup> ma2

C) A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices. A) ma<sup>2 </sup> B) ma<sup>2 </sup> C) ma<sup>2 </sup> D) ma<sup>2 </sup> E) ma<sup>2 </sup> ma2

D) A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices. A) ma<sup>2 </sup> B) ma<sup>2 </sup> C) ma<sup>2 </sup> D) ma<sup>2 </sup> E) ma<sup>2 </sup> ma2

E) A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices. A) ma<sup>2 </sup> B) ma<sup>2 </sup> C) ma<sup>2 </sup> D) ma<sup>2 </sup> E) ma<sup>2 </sup> ma2

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