Strength of Materials
If a number of forces act simultaneously on a particle, it is possible

Not a replace them by a single force
To replace them by a single force
To replace them by a couple
To replace them by a single force through C.G.

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Strength of Materials
Center of percussion is

the point of metacentre
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
the point of C.G.

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