At $t=0,$ an $855-$g mass at rest on the end of a horizontal spring $)=(187\frac{N}{m}$ is struck by a hammer which gives it an initial speed of $2\mathrm{.}22\frac{m}{s}.$

Part A

Determine the period of the motion.

Part B

Determine the frequency of the motion.

Part C

Determine the amplitude.

Determine the total energy.

Determine the kinetic energy when $x=0\mathrm{.}40$A where $A$ is the amplitude.