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Centre of gra...

Question

Centre of gravity is the point at which all the weight of the body can be assumed to act.

A

False

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B

True

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Solution

The correct option is B True

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Q. (a) Centre of gravity (CG) of a body is the point at which the weight of the body acts
(b) centre of mass coincides with the centre of gravity if the earth is assumed to have infinitely large radius
(c) To evaluate the gravitational field intensity due to any body at an external point, the entire mass of the body can be considered to be concentrated at its CG
(d) The radius of gyration of any body rotating about an axis is the length of the perpendicular dropped from the CG of the body to the axis
Which one of the following pairs of statements is correct?

Q. What is the weight (or force of gravity) of a body(mass

m

) at the centre of earth ?

The point at which the entire weight of a body is assumed to be concentrated is known as ___.

Q. A body can always be balanced at its centre of gravity.

Q. When the centre of gravity of a body lies at the point of suspension or support, the body is said to be in _____ equilibrium. Fill in the blank.

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