Asked by Steven
A compact car of mass 915 kg has an overall motor efficiency of 16.0%.
(a) If burning one gallon of gasoline supplies 1.34 108 J of energy, find the amount of gasoline used in accelerating the car from rest to 55.0 mi/h. Here you may ignore the effects of air resistance and rolling friction.
(b) How many such accelerations will one gallon provide?
(c) The mileage claimed for the car is 39.0 mi/gal at 55 mi/h. What power is delivered to the wheels (to overcome frictional effects) when the car is driven at this speed?
(a) If burning one gallon of gasoline supplies 1.34 108 J of energy, find the amount of gasoline used in accelerating the car from rest to 55.0 mi/h. Here you may ignore the effects of air resistance and rolling friction.
(b) How many such accelerations will one gallon provide?
(c) The mileage claimed for the car is 39.0 mi/gal at 55 mi/h. What power is delivered to the wheels (to overcome frictional effects) when the car is driven at this speed?
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