Answer:
C. 0.5 m/s² west
Explanation:
The shark's average acceleration is given by:
[tex]a=\frac{v-u}{t}[/tex]
where
v = 15 m/s west is the final velocity
u = 10 m/s west is the initial velocity
t = 10 s is the time taken
Substituting data into the equation, we find:
[tex]a=\frac{15 m/s-10 m/s}{10s}=0.5 m/s^2[/tex]
and since the acceleration is positive, it means that it is in the same direction as the velocity, so west.
