Question

Here are certain positions of a particle which can
move in a horizontal plane. Two of them denote
identical positions. Identify these positions.
(a) 5 m, 30° north of east
(b) 5 m, 30° east of north
(c) 5 m, 60° south of west
(d) 5 m, 60° east of north​

Answer 1

(a) and (d)

5m, 30deg north of east and 5m, 60deg east of north are same positions.