1. Kinetic energy K (Chapter 7) has dimensions kg ? m2/s2. It can be written in terms of the momentum p (Chapter 9) and mass m as
k=p^2/2m
(a) Determine the proper units for momentum using dimensional analysis.
(b) The unit of force is the newton N, where 1 N = 1 kg ? m/s2 . What are the units of momentum p in terms of a newton and another fundamental SI unit?