Posted by **Layla** on Sunday, October 31, 2010 at 3:57pm.

A bicyclist on an old bike (combined mass: 96 kg) is rolling down (no pedaling or braking) a hill of height 103 m. Over the course of the 278 meters of downhill road, she encounters a constant friction force of 323 Newton. If her speed at the top of the hill is 7 m/s, what is her speed at the bottom of the hill?

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