How much runway does a 150,000-kg cargo plane need if it uniformly reaches its minimum takeoff speed of 135 m/s in 12 seconds?
A)1020 m
B)810 m
C)405 m
D)1620 m
E)More information is needed.

Question

Quizplus · Accepted Answer

The runway needed can be calculated using the formula for distance with uniform acceleration: $d = \frac{1}{2} \times v \times t$. Here, $v = 135 \, \text{m/s}$ and $t = 12 \, \text{s}$, so $d = \frac{1}{2} \times 135 \times 12 = 810 \, \text{m}$.

How Much Runway Does a 150,000-Kg Cargo Plane Need If