In the given simple harmonic motion, maximum acceleration amax=8πm/s2 and maximum speed vmax=1.6m/s . As, we know that for simple harmonic motion amax=ω2A and ‌‌vmax=ωA where, A= amplitude of SHM, ⇒‌‌amax=vmaxω .....(i) So, from Eq.(i), we get