Physics, 25.03.2020 06:37 haelleydorethy
On an essentially frictionless, horizontal ice rink, a skater mowing at 3.0 m/s encounters a rough patch that reduces her speed to 1.65 m/s due to a friction force that is 25% of her weight. Use the work—energy theorem to find the length of this rough patch.
Answers: 1
![\Delta s = \frac{\frac{1}{2}\cdot [(3\,\frac{m}{s} )^{2}-(1.65\,\frac{m}{s} )^{2}] }{0.25\cdot (9.807\,\frac{m}{s^{2}} )}](/tpl/images/0562/7546/9ea70.png)
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On an essentially frictionless, horizontal ice rink, a skater mowing at 3.0 m/s encounters a rough p...
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