A hydraulic lift with a circular output plunger of radius 0.5 m is used to lift a building of mass 10,000 kg. The input plunger (which is at the same height as the output plunger) has radius 0.01 m. How much force must be exerted on the input plunger to support the building?
(a) 18 N
(b) 39 N
(c) 160 N
(d) 1600 N
(e) 9800 N