Question

Question 12 & 13 on
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Answer 1

Answer on Question #56547-Physics-Mechanics-Relativity

5-12 A body is rotating uniformly about a vertical axis fixed in an inertial frame. The resultant force on a particle of the body not on the axis is :

(A) Vertical

(B) Horizontal and skew with the axis

(C) Horizontal and intersecting the axis

(D) None of these

5-13 The axis of rotation of a purely rotating body :

(A) Must pass through the centre of mass

(B) May pass through the centre of mass

(C) Must pass through a particle of the body

(D) May pass through a particle of the body

12.

Answer: (C) Horizontal and intersecting the axis

It is a factual statement.

13.

Answer: (B) May pass through the center of mass; (D) May pass through a particle of the body.

It is a factual statement.

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