# Grand Canyon University Work and Energy Lab 9 Report

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fohejryy16

Science

Grand Canyon University

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All graphs and scenarios are listed, not looking for perfection, just minimum accurate findings.

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Lab 9: Work and Energy
Prediction 1-1A: Job C
Prediction 1-1B: We have that lifting 100 50-lb boxes and lifting 50 100-lb boxes is like
lifting a grand total of 5000 lbs. Considering we have less boxes if they weight 100 lbs. and
the distance to lift them is the shortest at 10 feet, Job C would be faster and require less effort.
Question 1-1: To move an object at rest, we need to apply a force greater than the ones
currently at equilibrium (force of gravity and normal force, static friction force for lifting and
pushing, respectively), according to Newton’s Second Law.
Question 1-2: It took about twice as much effort with 2 books instead of one, both for lifting
and pushing.
Question 1-3: Since I had to do so for longer, it also took as twice as much effort for both
pushing and lifting.
Question 1-4: I would say work is directly proportional to the force applied and is directly
proportional to the distance moved as well.
Question 1-5: Yes, it does agree with what I said before. When I had to lift or push two books,

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