Question
Required information A car with mass of 1035 kg accelerates from 0 m/s to 40.0 m/s in 10.0 s. Ignore air resistance. The engine has
Required information
A car with mass of 1035 kg accelerates from 0 m/s to 40.0 m/s in 10.0 s. Ignore air resistance. The engine has a 22.0% efficiency, which means that 22.0% of the energy released by the burning gasoline is converted into mechanical energy.
What is the average mechanical power output of the engine?
_______kW
Hint: How can you relate power, energy and time? Is there any potential energy involved in this problem?
What volume of gasoline is consumed? Assume that the burning of 1.00 L of gasoline releases 46.0 MJ of energy.
_______L Hint: Given the energy content of the gasoline, how can the chemical energy actually provided by the engine be found?
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