What is the resultant force of an object if there are forces of 70 lbs at an angle 90 degrees N of west, 55lbs at an angle of 63 degrees S of west, and 42 lbs at an angle of 158 degrees N of east?© BrainMass Inc. brainmass.com March 4, 2021, 6:08 pm ad1c9bdddf
Let East direction be the positive x axis and North the positive y axis
Component is the horizontal (x) direction = (Magnitude) x (Cos phi)
Component is the vertical (y) direction = (Magnitude) x (Sin phi)
a) 70 LBS AT AN ANGLE 90 DEGREES N OF WEST
90 degrees N of West is also 90 degrees from the positive x direction
Magnitude = 70 ...
Finds the resultant force.