why it is possible to balance a metre rule at its midpoint but not possible to balance a billiard cue at its midpoint
Answers
Explanation:
This is because the metre rule's volume is equally distributed throughtout. so when it is balanced at its midpoint, the total moment of torque (anticlockwise and clockwise moment) either side of the midpoint is equal.
But, in the case of a billiard cue, the volume is not equally distrubuted. It's volume is more on one side and less on the other. so, it's centre of gravity shifts towards the end with more mass. this shift makes it impossible to balance the billiard cue at its midpoint,since moment of torque towards the last part ( with more mass, and thus more torque) increases.
In simple words, if mass of a object is not equally distributed throughout it, its centre of gravity will shift whichever end or part of the object has more amount of mass.
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