We investigated a jet landing on an aircraft carrier. In a later maneuver, the j

Question

We investigated a jet landing on an aircraft carrier. In a later maneuver, the jet comes in for a landing on solid ground with a speed of 115 m/s, and its acceleration can have a maximum magnitude of 6.47 m/s^2 as it comes to rest. (a) From the instant the jet touches the runway, what is the minimum time interval needed before it can come to rest? ______ (b) Can this jet land on a small tropical island airport where the runway is 0.800 km long? Yes No (c) Explain your answer. ________ This answer has not been graded yet.

Explanation / Answer

here,

initial speed , u = 115 m/s

accelration , a = 6.47 m/s^2

a)

let the time taken be t

v = u + a * t

0 = 115 - 6.47 * t

t = 17.8 s

the minimum stopping time is 17.8 s

b)

using third equation of motion

v^2 - u^2 = 2 * a * s

0 - 115^2 = - 2 * 6.47 * s

s = 1022 m = 1.022 km

as s > 1.022 km

No, Jet can not land on the small town

c)

as s > 1.022 km

No, Jet can not land on the small town

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