Doubts on Measuring Efficiency of Pulley Experiment

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The discussion centers on measuring the efficiency of a pulley experiment conducted by Peter G. He exerted a force of 1.4 N to lift a mass over a distance of 0.05 m, with repeated measurements of the force duration at 0.275, 0.28, and 0.285 seconds. Peter seeks clarification on calculating uncertainty for the distance moved, specifically whether to use the smallest degree of accuracy of the ruler or half the range. Additionally, there is confusion regarding the appropriate units for measuring the duration of effort.

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Peter G.
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I am processing the data in my pulley experiment and I have a doubt.

I am measuring the efficiency, thus, I measured the work I inputed in the system. For when the mass being lifted by me was moved by 0.05m, I exerted a 1.4 N force and I had to exert that force for 0.275, 0.28, 0.285. (Those are my repeats)

My question is: The uncertainty for the distance I moved the force would be the smallest degree of accuracy in my ruler or half the range?

Thanks,
Peter G.
 
Physics news on Phys.org
What are the units for the duration of the effort? seconds, minutes, hours, fortnights?
 
meters.
 

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