Respuesta :
Answer:
2 m/s^2
Explanation:
Acceleration of an object is given by:
[tex]a=\frac{v-u}{t}[/tex]
where
v is the final velocity
u is the initial velocity
t is the time taken to accelerate from u to v
In this problem, we have:
u = 30 m/s
v = 40 m/s
t = 5 s
Substituting into the formula, we find
[tex]a=\frac{40 m/s-30 m/s}{5 s}=2 m/s^2[/tex]