Question

You are designing an airport for small planes. One kind of air plane that might use this
airfield must reach a speed before take off of at least 27.8 m/s (100km/h), and can
accelerate at 2.00 m/s2?
(a) If the runway is 150 long, can this airplane reach the required speed for take off?
(b) If not, what minimum length must the runway have?

Answer fast please

Answer 1

Answer:

Explanation:

Given->

v = 27.8m/s

u = 0m/s

a = 2m/s^2

Using formula

=> v^2-u^2= 2as

For finding s

=> (27.8)^2 - 0^2 = 2*2*s

=> 772.84 - 0 = 4*s

=> s = 193.21

Thus the required runeay should atleast be 193.21 m long.

Answer 2

Answer:

is it possible for an object to have a zero acceleration and non - zero velocity ?