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A boat has a mass of 6800 kg. its engines generate a drive force of 3300 n, due west, while the wind exerts a force of 920 n, due east, and the water exerts a resistive force of 1200 n due east. what is the magnitude and direction of the boat's acceleration?

Respuesta :

Refer to the figure below, which shows a plan view of the boat.

Let a  =  acceleration of the boat, due west.
Then
(3300 - 910 - 1200 N) = (6800 kg)*(a m/s²)
a = 1190/6800 = 0.175 m/s²

Answer: 0.175 m/s², due west.
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