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Many competitive cyclists, and some serious recreational cyclists now use a power meter?
to measure their instantaneous power output.
A recreational cyclist riding on a horizontal surface averaged 420 watts and 23 miles per hour for 1 hour of riding.
Assuming the body is 40% efficient (i.e. it consumes 60% of total work to output the 40%)
How many food calories did the cyclist burn?
If one cup of cooked rice is 225 calories, how many bowls of rice would the cyclist eat to replenish the energy consumed?
What is the average resistance the cyclist overcame to achieve this?
2 Answers
- Anonymous1 decade agoFavorite Answer
1) Work done =420 J/s *3600s = 1512kCal
Calories*0.4= work done,
so Calories needed =3780kCal
2) 3780kCa / 225 callories/cup = 16800
(I beleive that you have the question wrong here as 50g of rice should have about 22.5Kcal of energy, so if this is that case then the answer to to is 16.8cups, which is more reasonanble)
3) If Work = Force X Distance, and Work = 1512kCal
, and Distance is 23miles=36.8km=36800m then
F=w/D=1512kCal/36800m=41N
- Anonymous4 years ago
tremendous exercising too! I have one and journey all of it the time! there are not any equipment ratios, so that you're continuously pedaling to flow stability and turn! It takes severe practice to study. In 2 weeks at 6 hours an afternoon i slightly rode 10 ft. on the proper of two weeks. it took me yet another month to sense tender adequate to journey it in school round campus. yet yea, i absolutely reccommend it! quite a number of people imagine its the best element at the same time as they see you wizz via them!