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| Re: DeBlasio to propose light rail line (1384341) | |||
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Re: DeBlasio to propose light rail line |
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Posted by Stephen Bauman on Fri Feb 5 11:00:05 2016, in response to Re: DeBlasio to propose light rail line, posted by WillD on Thu Feb 4 22:17:32 2016. I contend that if you walk at a relatively quick pace you're going to sweat more than if you had biked the trip.A person will expend about twice as much energy walking than biking over the same distance. Both the walker and biker are traveling at leisurely paces (2.5 and 10 mph, respectively.) The reason is the walker is constantly lifting his body weight with each step, albeit by a small distance. The bicycle supports the rider's weight. The biker need only overcome wind resistance. The mass the rider is pushing is air, not his own weight. There are two instances where the biker's weight must be overcome. The first is climbing a hill. The second is accelerating, where Newton's Third Law applies. |
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