Question

A uniform square plate has a small piece Q of an irregular shape removed and glued to the centre of the plate leaving a hole behind figure. The CM of the plate is now in the following quadrant of x-y plane ______.

विकल्प

• I

• II

• III

• IV

Answer 1

A uniform square plate has a small piece Q of an irregular shape removed and glued to the centre of the plate leaving a hole behind figure. The CM of the plate is now in the following quadrant of x-y plane III.

Explanation:

Consider the adjacent diagram, there is a line shown in the figure drawn along the diagonal. First, the centre of mass of the system was on the dotted line and was shitted towards Q from the centre (I^st quadrant).

When the mass is removed, it will be on the same line but shifted away from the centre and below (III^rd quadrant). The position of CM is shown by X in the diagram.