physics
Two children on the beach are pulling on an inner tube. One exerts a force of 45 N[N]. The other exerts a force of 60N[SW]. What is the net force acting on the tube
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Melissa

Fn = 45N @ 90 Deg. + 60N @ 225 Deg.
X = 45*cos90 + 60*cos225 = 42.43 N.
Y = 45*sin90 + 60*sin225 = 2.57 N.
tanAr = Y/X = 2.57 / 42.43 = 0.06066.
Ar = 3.47 Deg.
A = 3.47 + 180 = 176.5 Deg.
Fn = X/cosA = 42.43 / cos176.5 = 42'51 N. @ 176.5 Deg.,CCW.
posted by Henry
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