1.

A particle in simple harmonic motion is described by the displacement function x(t)=Acos⁡(ωt+θ). If the initial (t=0) position of the particle is 1cm and its initial velocity isπcm/s, what is its amplitude? The angular frequency is the particle is πrad/s.

A. 1 cm
B. √2 cm
C. 2 cm
D. 2.5 cm
Answer» C. 2 cm


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