1. The problem statement, all variables and given/known data A 325Kg boat is sailing 15° north of east at a speed of 2.00ms-1. Thirty seconds later it is sailing 35° north of east at a speed of 4.00ms-1. During this time, three forces act on the boat: A 31N force directed 15° north of east (engine), a 23N force directed 15° south of west (resistance due to water) and Fw (due to the wind). Find the magnitude and direction of the force Fw. Express the direction as an angle with respct to due east. 2. Relevant equations 3. The attempt at a solution I'm struggling to break this question down into quantities that I know. From drawing a diagram, the resultant force in the 'forwards' direction is 8N 15° North of east. Which tells me the boat is accelerating due to the engine and the force of the wind, since the direction must also change. Could anyone point some things out that might help me get started? Thanks!