What is the acceleration for the plane must leave a 950m runway?

The correct answer is option B
To determine the acceleration required, use this formula
VF^2 = V0^2 + 2ad
Where
VF = Final speed
V0 = Initial speed
a = acceleration
d = distance
VF = 75m/s
V0 = 0
a = ?
d = 950m
75^2 = 0 + 2a(950)
a = 75^2/ 2 * 950
= 5625/ 1900
= 2.96m/s/s
The acceleration is approximately 3m/s/s.