A block with mass 4 kg is attached to a spring with spring constant k = 200 N/m and compressed 3 m fromn its equilibrium point and released from rest on frictionless horizontal surface. At t = 0.1 s the block is passing through equilibrium point with maximum speed. Determine the phase angle. Select one: a. 9 degree b. -32 degree C. 180 degree d. 0 degree e. 50 degree

A block with mass 4 kg is attached to a spring with spring constant k = 200 N/m and compressed 3 m fromn its equilibrium point and released from rest on frictionless horizontal surface. At t = 0.1 s the block is passing through equilibrium point with maximum speed. Determine the phase angle. Select one: a. 9 degree b. -32 degree C. 180 degree d. 0 degree e. 50 degree