Question

carrier. In a later maneuver, the jet comes in for a landing on solid ground with a speed of 100 m/s, and its acceleration can have a maximum magnitude of 5.00 m/s2 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

Answer 1

Answer:

The time required for the plane to slow down from the moment it touches the ground is 20 seconds.

Explanation:

t = Time taken for jet to stop

u = Initial velocity = 100 m/s

v = Final velocity = 0

s = Displacement

a = Acceleration = -5.00 m/s² (slowing down)

Equation of motion

$v=u+at\\\Rightarrow t=\frac{v-u}{a}\\\Rightarrow t=\frac{0-100}{-5}\\\Rightarrow t=20\ s$

The time required for the plane to slow down from the moment it touches the ground is 20 seconds.