Question

An airplane accelerates down a runway at $3.20m/s^2$ for $32.8s$ until is finally lifts off the ground. Determine the distance traveled before takeoff. (in m)

• A. $1720m$
  
• B. $172m$
  
• C. $170m$
  
• D. $720m$
  

Answer 1

Answer: (A)

$1720m$

Initial speed of airplane $u=0m/s$

Acceleration of the plane $a=3.2m/s^2$ and time taken $t=3.28s$

Using formula, distance covered $S=ut+\frac{1}{2}a{t}^2$

$\Rightarrow$ $S=0\left(32.8\right)+0.5\left(3.2\right)(32.8{)}^2=1721.3\sim 1720m$