A block has a mass of 1.20 kg and is attached to a spring with spring constant of 5.00 N/m. The damping force is given by -b(dx/dt), where b=0.250 kg/s. The block was pulled and an block started to oscillate.
a) Calculate the time required to fall the amplitude to half to its initial value
b) How many oscillations is made by the block by that time?