Answer:
B) work-energy
Explanation:
It is the work-energy theorem as there is no theorem called "mass-acceleration theorem" [unless you consider Newton's Second Law (maybe?) but not really].
Its postulates are :
- Work done by all the forces = Change in Kinetic Energy.
- W g + W N + W f =K f – K i
- Where W g = work done by gravity
- W N = work done by a normal force
- W f = work done by friction
- K f = final kinetic energy.
