A car travels 20km West and then 20 km South. What is the magnitude of it's displacement vector

c. 28. km

11. Cartesian Coordinates.

X Y

S - 3.5 4.5

T 0 - 6.5

U 3.5 - 2.5

what is angle of resultant vector STU measuring from positive x axis.

24 degrees below x

12. Cartesian Coordinates

Cartesian Coordinates.

X Y

S - 3.5 4.5

T 0 - 6.5

U 3.5 - 2.5

what is magnitude of resultant vector STU

a. 4.9 b. 24 c. 16. d. 18

Seems right option is not there. The right one will be 7./2 ie 9.9