posted by Pay .
A whale swims due east for a distance of 7.5 km, turns around and goes due west for 2.5 km, and finally turns around again and heads 2.6 km due east.
(a) What is the total distance traveled by the whale?
(b) What are the magnitude and direction of the displacement of the whale?
(a) 7.5 + 2.5 + 2.6
(b) 7.5 - 2.5 + 2.6 (east)