. The animal as a machine and a prime motor, and the laws of energetics. Animal mechanics; Force and energy. THE ANIMAL AS A MOTOR. 65 the load being behind the axle, the forward weight of the animal is reduced by the lift of the shafts at A, and the result is the same as if the traces had been put up at the point D, and the load, with a 33-lb. pull through such a trace, would be exactly balanced. Let UV represent the horizon passing through the point D. If DA represents 33 lbs., then FA will (J. Besultant of Coviponents A B and A C as A or ND added to Horse's Weight, ND equals h taken from th
. The animal as a machine and a prime motor, and the laws of energetics. Animal mechanics; Force and energy. THE ANIMAL AS A MOTOR. 65 the load being behind the axle, the forward weight of the animal is reduced by the lift of the shafts at A, and the result is the same as if the traces had been put up at the point D, and the load, with a 33-lb. pull through such a trace, would be exactly balanced. Let UV represent the horizon passing through the point D. If DA represents 33 lbs., then FA will (J. Besultant of Coviponents A B and A C as A or ND added to Horse's Weight, ND equals h taken from the Load and Carried by the Horse. Fig. I .—Haulage of Vehicles. represent 4 lbs., so that 4 lbs. must be added to the horse's natural weight by the pull AD. Or, if the pull through the trace AB is 36 lbs., then, drawing BE parallel with the horizon UV, EA (14 lbs.) will repre- sent the depression due to a 36-lb. pull through AB. But when the hft due to the shafts, 10 lbs., is deducted from the depression of 14 lbs., there remains as before an increased weight of 4 lbs. on the horse. When the horse is pulling with the same force upon a level, as in Fig. 2, we find very different results. Let PA be the direction from the hames to the centre. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thurston, Robert Henry, 1839-1903. New York, J. Wiley & Sons
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforcean, bookyear1894
