Maximum displacement , \(\displaystyle{\left|{a}\right|}={2},\)

Frequency, \(\displaystyle{f}=\frac{\omega}{{{2}\pi}}=\frac{{\frac{\pi}{{4}}}}{{{2}\pi}}=\frac{{1}}{{8}}\)

Time required for one cycle, period \(\displaystyle=\frac{{1}}{{f}}={8}\)

Phase shift \(\displaystyle=\frac{{-\frac{\pi}{{2}}}}{{\frac{\pi}{{4}}}}=-{2}\);

\(\displaystyle{\left|{a}\right|}={2};{f}=\frac{{1}}{{8}}\); period = 8; phase shift = -2

Frequency, \(\displaystyle{f}=\frac{\omega}{{{2}\pi}}=\frac{{\frac{\pi}{{4}}}}{{{2}\pi}}=\frac{{1}}{{8}}\)

Time required for one cycle, period \(\displaystyle=\frac{{1}}{{f}}={8}\)

Phase shift \(\displaystyle=\frac{{-\frac{\pi}{{2}}}}{{\frac{\pi}{{4}}}}=-{2}\);

\(\displaystyle{\left|{a}\right|}={2};{f}=\frac{{1}}{{8}}\); period = 8; phase shift = -2