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The centre of gravity is where the total gravitational torque is:

AKept constant
BKept positive
CExactly zero
DAt its largest
Answer & Solution
Correct answer: C. Exactly zero
1. Gravity acts on every particle of an extended body. 2. Their turning effects balance about one particular point. 3. That point is the centre of gravity. _Source: syllabus Physics Part I, Chapter 7, Systems of Particles and Rotational Motion._
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