If Ax is -ve and Ay is +ve, the resultant is:___________?
Correct answer: A. 2nd
- A. 2nd
- B. 4th
- C. 3rd
- D. 1st
Explanation
A negative Ax component points left and a positive Ay component points upward, placing the resultant in the second quadrant. Students may choose the fourth quadrant by remembering only the negative x-component and ignoring the positive y-component.
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About Rectangular Components
A vector is resolved into perpendicular horizontal and vertical components using trigonometric relations, usually as Ax = A cos θ and Ay = A sin θ when θ is measured from the horizontal. Questions involve signs in different quadrants, reconstructing a resultant from components, and using components to analyse equilibrium.
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