This year's Boo on Ballard had a Physics lesson built right in!! They had a zip line set up just begging to be analyzed in terms of forces, torques and spring constants!
Check out the video below:
So, can you draw a diagram to show the tensions involved on a zip line?
What can you say about the torque applied by the hydraulic lifts in relation to the tension of the cables?
Think about the spring at the end. What considerations need to be made to make this safe?
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