Compute all parts of given problem:
Problem: A block of mass 8.4 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of 58.0 N at an angle 32.8° above the horizontal.
Part A: What is the magnitude of the acceleration of the block?
Part B: What is the Normal force?
Show how you get the answer, so that I can better understand how to do it.