A Mass Is Oscillating on a Spring with a Period

Multiple Choice

A mass is oscillating on a spring with a period of 4.60 s. At t = 0 s the mass has zero speed and is at x = 8.30 cm. What is its speed at t = 2.50 s?

A) 10.9 cm/s
B) 3.06 cm/s
C) 3.32 cm/s
D) 1.80 cm/s
E) 0 cm/s