Question

Justin is out fishing again and rides in a boat 12 km west. The fish aren’t biting so they go 10 km north. They then follow a school of fish 14 km east. What distance did they cover? What was their displacement

Answer 1

is he Justin beuver

Answer 2

Distance = 12 km + 4 km + 1 km

               = 17 km

If the unit vectors along north and east is j and i respectively then

Displacement = (12(-j) + 4(-i) + j) km

                       = (-4i + 11j) km

Magnitude of displacement = √(4^2 + 11^2)

                                              = 11.70 km