Solve the all parts of given question:
Question: A 1.2 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is applied to the block. The force is given by f(x)=(2.3-x2)iN, where x is in meters and the initial position of the block is x=0.
Part A: What is the kinetic energy of the block as it passes through x = 2.1 m?
Part B: What is the maximum kinetic energy of the block between x = 0 and x = 2.1 m?
Please show all work and steps to determine the kinetic energy of the block.