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Define centre of Gravity and centre of mass.
Differentiate between centre of gravity and centre of mass.
Answers
Answer:
centre of mass - a point representing the mean position of the matter in a body or system.
Centre of gravity - Centre of gravity, in physics, an imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be concentrated. The concept is sometimes useful in designing static structures (e.g., buildings and bridges) or in predicting the behaviour of a moving body when it is acted on by gravity.
DIFFERENCES
Centre of mass is the point at which the distribution of mass is equal in all directions and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions and it does depend on gravitational field. The centre of mass and centre of gravity are in same position if the gravitational field in which the object exists stays uniform.
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