Answer:
C. 0.5 m/s² west
Explanation:
The shark average acceleration is given by the following equation:
[tex]a=\frac{v-u}{t}[/tex]
where:
u = 10 m/s west is the initial velocity of the shark
v = 15 m/s west is the final velocity
t = 10 s is the time taken
Plugging numbers into the formula, we find
[tex]a=\frac{15 m/s-10 m/s}{10 s}=0.5 m/s^2[/tex]
and the direction is west, because the shark speeds up in the same direction of the initial velocity, so the acceleration is positive and therefore in the same direction.
