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A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time...

A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x = 9 cos (pt). The magnitude of the acceleration (in m/s2)of the body at t = 1.0 s is approximately
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Answer #1

# x=9 cos(pt) Differentiate it w.rot time du It =-qpsin (pt) Again differentiate it du It? 2 -> a - -9p?cos(pt) -qp² cospf) A

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