A boy runs 210m along corridor of his school turns right at the end of the corridor and runs 180 m to the end of the building and then turns right and runs 30 m.
(i) Construct a vector diagram that represents this motion. Indicate your choice of unit vectors.

Explanation

We choose , `hati` =unit vector along x-axis, `hatj` =unit vector along y-axis,

The consecutive displacements are,
`vec(AB)=210hatim, vec(BC)=-180hatjm,vec(CD)=-30hatim`