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Q5/ In sailing at a constant speed with the wind, the sail-
boat is driven by a 4-kN force against its mainsail and
a 1.6-kN force against its staysail as shown. The total
resistance due to fluid friction through the water is
the force R. Determine the resultant of the lateral
forces perpendicular to motion applied to the hull by
the water.
Wind
1.6
kN
1.5 m
R-
3 m.
4 kN

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