AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE … Fig. 2—Rolling resistance as measured by the machine shown i>i Fig. 1 March SI, 1921 rests on the surfaceof a drum whichturns at a peripheralspeed of 30 m.p.h.The drum is drivenby an electric motorM. It is possible tomeasure the powerabsorbed by the mo-tor by means of avoltmeter V and anammeter…
Automobiles · Aeronautics
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