The acceleration is [tex]3 m/s^2[/tex] north
Explanation:
The acceleration of a body is the rate of change of velocity of the body. Mathematically, it is given by the equation
[tex]a=\frac{v-u}{t}[/tex]
where
v is the final velocity
u is the initial velocity
t is the time elapsed
For the person in this problem, we have:
u = 0 is the initial velocity
v = 9 m/s (north) is the final velocity
t = 3 s is the time
Therefore, the acceleration of the person is
[tex]a=\frac{9-0}{3}=3 m/s^2[/tex]
And the direction is the same as the final velocity (north)
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