Question

conduct an experiment to find the centre of gravity of an object of irregular shape​

Answer 1

Explanation:

Apparatus

Irregular shaped cardboard piece, nail, string and nut

Procedure

Make a plumb line by tying a nut at one end of the string and nail at the other. Punch three holes (a bit larger than the nail) at different points near the edges of the cardboard. Insert the nail into one of the holes and hold the setup by the nail. Once the setup becomes steady, mark a line along the thread on the cardboard. Hold the setup by the nail in other holes and draw lines along the plumb line. You will notice that all the lines intersect at the same point. This point is the centre of gravity of the cardboard