Question

A man moves in an open field such that after moving 10m in a straight line ,he makes sharp turn of of 60degree to his left .the total displacement after 8 such turn is equal to -

Answer 1

Answer is 20

A is the point from where he started going. and he will finally reach at b. each triangle that is made by subtending an angle from a side to a centre o is an equilateral one.

hence the displacement is AB=AO+OB 

                                          AB=10 +10

                                               = 20 m