## Pulley

We can see some interesting relationships by graphing the data we have collected.

Graph 2A

Use the number of supporting ropes and the length of rope used to lift our stone from Table 3 to complete graph A in your lab packet.

1. As the number of supporting ropes on the pulley increases what happens to the length of rope that must be pulled to lift the stone into place?
2. Using this graph, predict the length of rope that would be pulled if you were using 5 supporting ropes.

Graph 2B

Use the force applied in each test and the length the force was pulled to complete graph B in your packet.

1. As the amount of force applied increases what happens to the length of rope pulled?
2. Predict the force if the length of rope pulled had been 7 meters.

Graph 2C

Use the number of supporting ropes and the force applied to complete Graph C.

1. As the number of supporting ropes increases what happens to the amount force applied?
2. Predict the force needed if 5 supporting ropes were used. 