Solve the Problem $3 \mathrm { ft }$ And Released $\mathrm { s } ( \mathrm { t } ) = \frac { 1 } { 3 } \sin \sqrt { \frac { 1 } { 10 } } \mathrm { t }$

Solve the problem.
-A spring with a spring constant of 5 and a 1-unit mass attached to it is stretched $3 \mathrm { ft }$ and released. What is the equation for the resulting oscillatory motion?

A) $\mathrm { s } ( \mathrm { t } ) = \frac { 1 } { 3 } \sin \sqrt { \frac { 1 } { 10 } } \mathrm { t }$
B) $s ( t ) = 3 \sin \sqrt { \frac { 1 } { 5 } } t$
C) $s ( t ) = 3 \sin \sqrt { 5 } t$
D) $\mathrm { s } ( \mathrm { t } ) = 5 \sin \sqrt { 3 } \mathrm { t }$