Acessna aircraft has a liftoff speed of v = km/h = 33.3 m/s.
a) what minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of s = 240 m?
b) how long does it take the aircraft to become airborne?

a) Minimum acceleration is .

b) It will take .

Explanation:

Let's order the information.

Initial velocity:

Final velocity:

Initial position:

Final position:

a) We can use velocity's equation:

⇒

⇒ .

b) For this, equation for average acceleration will be helpful. Taking and having as the unknown time it becomes airborne:

⇒

⇒ .

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.