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$\begingroup$ So I suppose that we have to use the 'fictional force' of centrifugal force to make this situation fit the energy model. Is there any way to avoid using centrifugal force though? Can it be explained in terms of 'real' forces? $\endgroup$

Turtleweezard
– Turtleweezard

2014-01-14 02:53:45 +00:00
Commented Jan 14, 2014 at 2:53
1

$\begingroup$ Centrifugal force is necessary if you want to explain it to the skater. If you want to explain it to the spectator, there is no centrifugal force; the kinetic energy is just transformed into internal energy of the muscles of the skater (dissipation is the natural end of most common manifestations of kinetic energy). It is quite common that mechanical energy degrades into internal form over time. $\endgroup$

Ján Lalinský
– Ján Lalinský

2014-01-14 03:18:05 +00:00
Commented Jan 14, 2014 at 3:18

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