A whale swims due east for a distance of 8.0 km in a time of 2.50 hours. It then turns around and moves west for 2.0 km on a time of 0.50 h. It turns around again and heads 4.0 km due east in a time of 1.00h.
a. What is the total distance travelled by the whale?
b. What is the total displacement?
c. Calculate the average speed for the entire trip.
d. Calculate the average velocity for the entire trip.
The Attempt at a Solution
I only got a and c correct, for a I put 14 Km and for c I put 3.5 km/ hr. I tried to do the question again and I drew out the whale swimming, and guessed that the displacement is 8 Km. This was a previous test, and the teacher didn't go over it! I'm trying to study for my exam ;). Thanks.