Question

Boyboy and Elang are on a hike. Starting from home base, they make the following movements: (A) 2.65 km, 140 N of E; (B) 4.77 km, 252 N of E; (C) 3.18 km, 332 N of E.

Answer 1

Their displacement toward the North is, respectively:

(a) $2.65·\sin140°=1.7\text{ km}.$

(b) $4.77·\sin252°=-4.54\text{ km} \\\text{(or 4.54 km toward South)}.$

(c) $3.18·\sin332°=-1.49\text{ km}.$