An 85-kg person is standing on a bathroom scale in an elevator. What is the person's apparent weight:

a) when the elevator accelerates upward at 2.0 m/s?

b) when the elevator is moving at constant velocity between floors?

c) when the elevator begins to slow at the top floor at 2.0 m/s?

Calculate the acceleration of a 30N net force acting to the right on a 2kg mass.