# Figure P5.19 shows the horizontal forces acting on a sailboat moving north at constant velocity,…

Figure P5.19 shows the horizontal forces acting on a sailboat moving north at constant velocity, seen from a point straight above its mast. At its particular speed, the water exerts a 220-N drag force on the sailboats hull. (a) Choose the x direction as east and the y direction as north. Write two component equations representing Newtons second law. Solve the equations for P (the force exerted by the wind on the sail) and for n (the force exerted by the water on the keel). (b) Choose the x direction as 40.0 north of east and the y direction as 40.0 west of north. Write Newtons second law

Figure P5.19 shows the horizontal forces acting on a sailboat moving north at constant velocity, seen from a point straight above its mast. At its particular speed, the water exerts a 220-N drag force on the sailboats hull. (a) Choose the x direction as east and the y direction as north. Write two component equations representing Newtons second law. Solve the equations for P (the force exerted by the wind on the sail) and for n (the force exerted by the water on the keel). (b) Choose the x direction as 40.0 north of east and the y direction as 40.0 west of north. Write Newtons second law as two component equations and solve for n and P. (c) Compare your solutions. Do the results agree? Is one calculation significantly easier?

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