v = r*w
v = 20 mph = 8.94 m/s
r = 12.2 = 0.30988 m
w = 8.94/0.30988 = 28.85 rad/s = 275 rev/m
the Transiational speed of a motorcycle is 20 mph. what is the rotational speed of the...
13. Based upon the speed ratios given in a car owner's manual, compute the rotational speed of the engine shaft for the specifications below. Also determine the approximate required engine horse power (HP) at 55 mph. The following data is known: . Total coefficient of resistance = 0.09 Differential efficiency = 95% Automatic transmission efficiency = 88% Wheel diameter = 22.5 inches Loaded car weight = 3000 lb Differential speed ratio = 3.889 . 5 . Automatic transmission: 1st gear...
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