Answer is (4,3)
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Add up the x coordinates to get 9+(-1) = 8. Divide this over two and we end up with 8/2 = 4
Repeat for the y coordinates: 9+(-3) = 6, which cuts in half to get 6/2 = 3
The midpoint is at (4,3)
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The midpoint formula is
where (x1,y1) and (x2,y2) are the endpoints.
The equation for resolving couples will come in place
Using the unit vectors by i and j along the x-axis and the y-axis you'll express it as a Cartesian vector.
<h3>Couple moment and Cartesian vector</h3>
Couple moment:This looks at the product of the forces acting on a body( in this context a steering wheel ) by the perpendicular distance that exist amidst the forces.
Cartesian vector:this is the representation of unit vectors by i and j along the x-axis and the y-axis, respectively.
Therefore, in calculating the <em>couple</em> moment t acting on the steering wheel, the equation for resolving couples will come in place
Using the unit vectors by i and j along the x-axis and the y-axis you'll express it as a Cartesian vector.
More on Cartesian Co-ordinate