reviews the central idea in this problem. A boat has a mass of 7690 kg. Its engines generate a drive force of 3680 N...

reviews the central idea in this problem. A boat has a mass of 7690 kg. Its engines generate a drive force of 3680 N due west, while the wind exerts a force of 670 N due east and the water exerts a resistive force of 1680 N due east. Take west to be the positive direction. What is the boat's acceleration, with correct sign?