Estimate the net force required to accelerate a typical fully-loaded double-decker bus at 1.2 m/s2.
180 N180\text{ N}180 N
1,800 N1,800\text{ N}1,800 N
18,000 N18,000\text{ N}18,000 N
180,000 N180,000\text{ N}180,000 N