Question

A man walks 4m towards east and then turns 60° to the north of east and again walks for 4 m. His
net displacement is
) 8m
(b) 4.2 m
(c) 6.9 m
(d) 5.4 m
​

Answer 1

Answer:

8m

The body move first east direction

Then he turns 60°

means it is at the direction of north east the angle formed is 120°

hence by isosceles triangle two angles are congruent and using sin 30°

=8M