Subjects
| Sections | |||
|---|---|---|---|
| Intro to Energy | 15 mins | 0 completed | Learn |
| Intro to Calculating Work | 36 mins | 0 completed | Learn |
| Work By Gravity & Inclined Planes | 40 mins | 0 completed | Learn |
| Work By Variable Forces (Springs) | 47 mins | 0 completed | Learn |
| Net Work & Kinetic Energy | 39 mins | 0 completed | Learn |
| More Work-Energy Problems | 39 mins | 0 completed | Learn |
| Power | 20 mins | 0 completed | Learn |
On an essentially frictionless, horizontal ice rink, a skater moving at 6.0 m/s encounters a rough patch that reduces her speed by 46 % due to a friction force that is 26 % of her weight.
Use the work-energy theorem to find the length of this rough patch.
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