A Spring with a Force Constant of 2

Multiple Choice

A spring with a force constant of 2.00 N/m is attached to a mass of 75.0 g. The system has a small amount of damping. If the amplitude of the oscillations decreases from 10.0 mm to 5.00 mm in 15.0 s, what is the magnitude of the damping constant?

A) 0.00693 Ns/m
B) 0.0462 Ns/m
C) 0.00762 Ns/m
D) 0.0100 Ns/m
E) 0.00857 Ns/m