In an attempt to escape his island, gilligan builds a raft and sets to sea. the wind shifts a great deal during the day, and he is blown along the following straight lines 2.5 km 45° north of west; then 4.70 km 60° south of east; then 5.1 km straight east; then 7.2 km 55 south of west; and finally 2.8 km 5 north of east. what is his final position in kilometers and degrees south of east relative to the island?

8.28 km

Explanation:  

Given

First it drifts 2.5 km

Secondly it drifts 4.70 km

After that it drifted along east direction 5.1 km

After that it drifts 7.2 km

After that it drifts 2.8 km

=+

for direction

south of east

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.