Physics-ch-4/exercise 9
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Physics for Scientists and Engineers (9th Edition)

Chapter-4

Table of Content


Question 9





Q9: A fish swimming in a horizontal plane has veloc- ity v ^i = i + j m/s at a point in the ocean where the position relative to a certain rock is r ^i = i-j m. After the fish swims with constant acceleration for s, its velocity is v ^ = i- j m/s.
(a) What are the components of the acceleration of the fish?
(b) What is the direc- tion of its acceleration with respect to unit vector i ^ ? (c) If the fish maintains constant acceleration, where is it at t = s and in what direction is it moving?