A boat has a mass of 4010 kg. Its engines generate a drive force of 3580 N due west, while the wind exerts a force of 660 N due east and the water exerts a resistive force of 1470 N due east. Take west to be the positive direction. What is the boat's acceleration, with correct sign?

Answer 1

Fn = 3580 - 660 - 1470 = 1450 N. = Net
force.

a = Fn/m = 1450 / 4110 = 0.362 m/s^2.