3. Consider the track shown in the figure below. The section AB is one quadrant of a circle of radius 2.0m and is frictionless. B to C is a horizontal span 3.0m long with a coefficient of kinetic friction k = 0.25. The section CD under the spring is frictionless. A block of mass 1.0kg is released from A. After sliding on the track, it is observed to compress the spring by 0.20m. Determine b. The work done by friction as the block slides from B to C a. The velocity of the block at point B c. The velocity of the puck at point C d. The constant k of the spring. m-1.0 kg 2.0 m D C