Assignment:
A scale is attached to the ceiling and a mass of 1.00 kg hangs from it. It reads 9.81 N. Another identical scale at the right is connected by perfect strings passing over perfect pulleys to two 1.00 kg masses hanging vertically at the end of the strings (the 1 kg masses are on opposite sides).
The scale at right reads
exactly 9.81 N.
more than 9.81 N, but not quite twice as much.
less than 9.81 N.
exactly 19.62 N.