During a lab investigation, students added four 50 g masses to two boxes and arranged the boxes so that they were motionless on a pulley, as shown in the diagram. The students then
followed the procedure described in the box. The students recorded their observations after
each procedure and reset the pulley system to the original conditions.
Procedures
50 g
1. Push Box 1 downward. Observe. Reset.
2. Add another mass to Box 1. Observe. Reset.
3. Remove one mass from Box 2. Observe. Reset.
4. Add another mass to Box 2. Observe. Reset.
5. Remove two masses from Box 1. Observe. Reset.
mass
Box 1
Box 2