When a 020-Kg Block Is Suspended from a Vertically Hanging Spring, It

Multiple Choice

When a 0.20-kg block is suspended from a vertically hanging spring, it stretches the spring from its original length of 0.040 m to 0.045 m. The same block is attached to the same spring and placed on a horizontal, frictionless surface as shown. The block is then pulled so that the spring stretches to a total length of 0.15 m. The block is released at time t = 0 s and undergoes simple harmonic motion.
-What is the speed of the block each time the spring is 5.0 cm long?

A) zero cm/s
B) 422 cm/s
C) 344 cm/s
D) 220 cm/s
E) 160 cm/s