Work is the amount of force needed to cause a displacement and is measured in joules. One joule = 1 Newton * meter.
Hence, here is the problem:
Take "Sam" deciding whether to walk or ride his bike uphill. This hill is steep, and has a 30 degree angle upward. There are 300 meters to travel on this hill with no change in the angle.
Sam weighs approximately 90 kilograms and his bike weighs 10 kilograms.
His bike is standard with multiple gear shifts for climbing uphill. Assume that he shifts to the "optimum" level to pedal continuously without stopping.
If possible, also answer which requires more calories? I would assume the one that requires more "work" requires more calories.
2006-06-18
19:36:07
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7 answers
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asked by
doogsdc
2