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

he made 11 calls in one day

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.