Solve the all parts of following question:
Question: A cord is used to vertically lower an initially stationary block of mass m = 25 kg at a constant downward acceleration of g/8. When the block has fallen a distance d = 1.5 m,
Part A: Find the work done by the cord's force on the block.
Part B: Find the work done by the gravitational force on the block.
Part C: Find the kinetic energy of the block.
Part D: Find the speed of the block.
Please show all work and steps to determine the work done by the cord's force on the block.