Vectors
Not what you're looking for?
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?
Purchase this Solution
Solution Summary
Finds the resultant force.
Solution Preview
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 ...
Purchase this Solution
Free BrainMass Quizzes
Probability Quiz
Some questions on probability
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.