Compare the motion of three geese. Which goose was moving at the lowest speed?

 - a goose that moved 210miles south in 5hours
 - a goose that moved 285miles north in 5hours
 - a goose that moved 435miles west in 5hours
Look at the distance each goose moved and the time it took to move that distance. The direction each goose moved does not affect its speed.
Notice that each goose moved for 5 hours. The goose that moved 210 miles moved the shortest distance in that time. So, that goose must have moved at the lowest speed.