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Problem: On an essentially frictionless, horizontal ice rink, a skater moving at 3.7m/s encounters a rough patch that reduces her speed by 41% due to a friction force that is 26% of her weight.
Part I: Use the work-energy theorem to find the length of this rough patch.
I need help to find the length of this rough patch.
When a 2.50kg object is hanging vertically on a light spring described by hooke's law the spring stretches 2.76cm.
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