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Apr12-08, 06:29 PM
HW Helper
P: 7,171
You original statement needs to be revised to read 30% loss in drive train, 70% reaches the wheels. Your calculations seem correct, assuming the car is geared so that max power occurs at an acceleration rate of 1 g. However, the second question isn't worded to state that the same gearing used for max acceleration of 1g would be used for determining the car's speed at max power. It would have been better stated to ask for the maximum speed that the maximum acceleration of 1g occurs at.

30% seems a little high for drive train losses, generally it's usually around 15%, although an all wheel drive car could have higher drive train losses.