What safty precautions would you take to ensure the good result to find center of gravity
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I think the question is about irregular object.
And here are some precautions ;
1) Make at least 3 holes near the circumference (perimeter)
2) Make sure that the holes are big enough ( which is really important to suspend)
3) Make sure that the string is inextencible ( not elastic)
Answered by
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The holes must be small and yet free to swing on the nail.
The thread must be very thin.
The experiment must be performed in still air.
A sharp pencil must be used to draw the lines.
The load for the plumb-line should not be too heavy to pull down or remove the nail or
needle
The line should be drawn with a straight edge/rule
The nail or pin should be firmly fixed to the wall or board
The plumb-line shouldn’t be swinging at the time the lines are being drawn.
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