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A boat has a mass of 5440 kg. Its engines generate a drive force of 4260...

A boat has a mass of 5440 kg. Its engines generate a drive force of 4260 N due west, while the wind exerts a force of 940 N due east and the water exerts a resistive force of 1370 N due east. Take west to be the positive direction. What is the boat's acceleration, with correct sign?

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