Remember: MODEL: explain assumptions and approximations. In particular, if you d
ID: 2240285 • Letter: R
Question
Remember:
MODEL: explain assumptions and approximations. In particular, if you decide to invoke a conservation law, make sure you explain what your system is and why the quantity is conserved.
VISUALISE: there will be marks for diagrams. There are also marks for defining all your quantities and telling me what they are, this is easiest to do on the diagram(s).
SOLVE: there will be some math. Use the symbols you define in the VISUALISE part.
ASSESS: did the units work out correctly in your calculations, is the size (order of magnitude) of your answer OK and how do you know that the order of magnitude is OK?
The highest headfirst dive is performed by professional divers near Acapulco, Mexico from 35 m. If a diver (mass 70 kg) enters the water at 25 m/s, having jumped off the platform with a speed of 1 m/s, how much energy is dissipated as thermal energy during the dive (before he enters the water)?
The highest headfirst dive is performed by professional divers near Acapulco, Mexico from 35 m. If a diver (mass 70 kg) enters the water at 25 m/s, having jumped off the platform with a speed of 1 m/s, how much energy is dissipated as thermal energy during the dive (before he enters the water)?
In Part A, you calculated how much energy is dissipated as thermal energy. Where is this thermal energy (in what part(s) of the system) just before the diver hits the water?
In Part A, you calculated how much energy is dissipated as thermal energy. Where is this thermal energy (in what part(s) of the system) just before the diver hits the water?
Draw energy bar charts for the dive.
Draw energy bar charts for the dive.
Hand in your written solution at the next class.Explanation / Answer
Remember: MODEL: explain assumptions and approximations. In particular, if you d