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When we measure, we compare an unknown quantity with certain standard 1 point called Unit of measurement O Instrument O Description Uncertainty For the right triangle shown below, solve for unknown length (c): when a = 6 2 points and b = 8 a O 13 O 10 O 12 11Direction of resultant of two vectors is given by 1 point cos-1 (Ax + By/Ay + Bx) cos-1(Ay + By/Ax + Bx) O tan-1(Ay - By/Ax - Bx) tan-1(Ay + By/Ax + Bx) Which of the following pairs of displacements will give a resultant of 2 points magnitude of 2m? 4m E and 2m E O 4m E and 2m N O 4m E and 4m W 4m E and 2m WThe algebraic sum of x-components = 45 N and y- components = - 47 N. 2 points Which is NOT true on resultant vector? The VR is located in quadrant 4. The VR can possibly have an angle of 43.75. The VR can possibly have a direction of S of W. The VR can be solved by Pythagorean theorem. A 4.0 N force is acting upward and a 3.0 N force is acting on the positive 2 points horizontal direction. Which of the following is the resultant force? 12.0 N 1.ON 7.ON O 5.0 NThe algebraic sum of xcomponents = 45 N and y components = 47 N. 2 polite Which statement is TRUE on resultant vector? O more than the algebraic sum of xcomponents O either a or b O less than the algebraic sum of ycomponents O less than the algebraic sum of x components Which one of the following vector addition equations is shown in Diagram 2? " pc r: It refers to the number of digits in a measure with degree of certainty. 1 point Significant Figures Scientific method O Scientific Notation None of these When adding vector B to vector A geometrically (or graphically) using the 2 points head to tail method, the resultant is drawn from __ to the O tail of B, head of A O tail of A, head of B O head of A, tail of B O head of B, tail of A