A block of mass m = 5kg and initial velocity v = 2m/s runs into
and compresses a spring of spring constant k = 50N/m. After
compressing the spring, the block remains connected to the spring
and continues to oscillate back and forth. The surface
between the block and floor is frictionless. What is the period of
the oscillation?
A) .12 sec
B) .35 sec
C) 1.2 sec
D) 1.6 sec
E) 2.0 sec