9. Work & Energy
Power
22:10 minutes
Problem 8.80
Textbook Question
Textbook QuestionA bicylist of mass 75 kg (including the bicycle) can coast down a 5.0° hill at a steady speed of 12 km/h. Pumping hard, the cyclist can descend the hill at a speed of 32 km/h. Using the same power, at what speed can the cyclist climb the same hill? Assume the force of friction is proportional to the square of the speed v; that is, F𝒻ᵣ = bv² , where b is a constant.
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
22mPlay a video:
142
views
Was this helpful?
Related Videos
Related Practice
Showing 1 of 10 videos