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Re: [RC] The Physics of Weight - Sisu West Ranch"... "More weight equals more work as an object is moved. Just Physics, just the facts." doesn't have a very good understanding of physics..."This all gets back to where you are moving the weight etc. 1. Case A the weight is moved 10 ft. across a completely flat tar parking lot. Weighs 100 lbs. Coef of friction .5 = 500 ft lbs of energy expended. Use a good wagon: total weight now 120 lbs, coef. of friction .05 Energy expended 60 ft lbs. 2 Case B move weight 10 feet up a 45 degree ramp with a similar coef. of friction. In the first case you will expend the same 500 ft lbs on friction , but will have raised (moved away from the center of the earth) it 7.07 feet. This will require 707 ft lbs of work total 1207 ft lbs. Using the wagon we get 767 Ft lbs. All this proves is that moving things up hill is harder than on the flat. Some rides are flat , some are hilly. Also horses usually do not have wheels. They move the total weight up on each stride. Yes, they have a marvelous spring system, but it is not 100% efficient. Instead of arguing, someone with lots of time and statistics should analyze enough hilly and flat rides to see what weight does to times of the fastest riders. I'll still bet that the weight doesn't matter folk are used to difficult hilly rides and the weight matters a lot folk ride on the flat. Ed Ed & Wendy Hauser 2994 Mittower Road Victor, MT 59875 (406) 642-9640 ranch(at)sisuwest(dot)us =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ridecamp is a service of Endurance Net, http://www.endurance.net. Information, Policy, Disclaimer: http://www.endurance.net/Ridecamp Subscribe/Unsubscribe http://www.endurance.net/ridecamp/logon.asp Ride Long and Ride Safe!! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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