Strength of Materials
The weight of a body is due to

gravitational pull exerted by the earth
gravitational force of attraction towards the centre of the earth.
force of attraction experienced by par-ticles
centripetal force of earth

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Strength of Materials
Center of percussion is

the point of metacentre
the point of C.G.
point of suspension
the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis

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