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A particle executing SHM is described by...

A particle executing SHM is described by the displacement function `x(t)=Acos(omegat+phi)`, if the initial (t=0) position of the particle is 1 cm, its initial velocity is `pii" cm "s^(-1)` and its angular frequency is `pis^(-1)`, then the amplitude of its motion is

A

phase constant

B

frequency

C

amplitude

D

displacement

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