Daniel Guzman
Physics 4A.
Lab 10 ( Activity- work and power).
The purpose of this particular experiment was to measure the power at which different members of the group would do different activities such as lifting a backpack using a pulley, walking upstairs and running upstairs, to then compare the powers achieved by each member of the group.
Experimental procedure and description of the apparatus: The apparatus for this particular experiment consisted of a pulley that was assembled by the professor, the pulley had attached to it a backpack that weighted 9 pounds. For the other two parts of the experiment an apparatus was no needed due that each member of the group was only required to go up some stairs running and walking.
The experimental procedure for this particular experiment was quite simple. The first part of the experiment required each member of the group to use the pulley to be able to lift the mass 4.4 meters above the ground, while a member of the group was trying or attempting to lift the backpack another member of the group would time how long it took the person to complete the activity, the same exact process was repeated for each member of the group. The other activity for this experiment consisted each member of the group to walk upstairs, while a member of the group was walking upstairs the other members would time how long it took the person to get to the top of the stairs, the same exactly process was repeated for each member of the group. The last activity done for this particular experiment was very similar to the previous one the only thing that changed was that the activity had to be done as fast as possible; nevertheless, the activity was the same, it consisted to get to the top of the stairs as fast as possible, while the other members of the group would time how long would it take the person to get to the top of the stairs.
Data table
This was the data taken during the different trials and activities. TL= time lifting. TW= time walking TR= time running
Calculated Results for power of each activity (Power lifting, power running, power walking)
Example calculations
Conclusion (the conclusion is all completed by hand, due to the calculations and questions)
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