The final velocity of the airplane is 7.2 m/s
Explanation:
The motion of the airplane is a uniformly accelerated motion, (constant acceleration), therefore we can use the suvat equation
v = u + at
where
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time
In this problem, we have
u = 6 m/s is the initial velocity
[tex]a=0.3 m/s^2[/tex] is the acceleration
t = 4 s is the time elapsed
Substituting the values, we find the velocity after 4 seconds:
[tex]v=6+(0.3)(4)=7.2 m/s[/tex]
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