Question

A body moves 12 m North and then turns to move 16 m East. Calculate the total distance and displacement of the body.

Answer 1

distance = 12 + 16 = 28

displacement = $\sqrt{12^2+16^2}$

displacement = $\sqrt{144+256}$

displacement = $\sqrt{400}$

displacement = 20

Answer 2

Distance:-12+16=28

Displacement:-√12square + 16 square

=√144+256

=√400

=20